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Finding the Fourth Proportional to 159,550.74, 220,180.02 and 87,930.76

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Solution

The fourth proportional to 159,550.74, 220,180.02 and 87,930.76 is: 121,344.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,550.74 : 220,180.02 = 87,930.76 : x
  2. Step 2: Convert to fraction form
    159,550.74/220,180.02 = 87,930.76/x
  3. Step 3: Cross multiply
    159,550.74x = 220,180.02 × 87,930.76
  4. Step 4: Simplify right side
    159,550.74x = 19,360,596,385.50
  5. Step 5: Solve for x
    x = 19,360,596,385.50/159,550.74
  6. Step 6: Final answer
    x = 121,344.45

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Find fourth proportional to 159,551.74, 220,181.40 and 87,931.76
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.