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Finding the Fourth Proportional to 159,532.32, 220,156.08 and 87,914.91

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Solution

The fourth proportional to 159,532.32, 220,156.08 and 87,914.91 is: 121,323.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,532.32 : 220,156.08 = 87,914.91 : x
  2. Step 2: Convert to fraction form
    159,532.32/220,156.08 = 87,914.91/x
  3. Step 3: Cross multiply
    159,532.32x = 220,156.08 × 87,914.91
  4. Step 4: Simplify right side
    159,532.32x = 19,355,001,959.15
  5. Step 5: Solve for x
    x = 19,355,001,959.15/159,532.32
  6. Step 6: Final answer
    x = 121,323.39

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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.