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Finding the Fourth Proportional to 159,532.60, 220,153.86 and 87,910.84

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Solution

The fourth proportional to 159,532.60, 220,153.86 and 87,910.84 is: 121,316.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,532.60 : 220,153.86 = 87,910.84 : x
  2. Step 2: Convert to fraction form
    159,532.60/220,153.86 = 87,910.84/x
  3. Step 3: Cross multiply
    159,532.60x = 220,153.86 × 87,910.84
  4. Step 4: Simplify right side
    159,532.60x = 19,353,910,761.84
  5. Step 5: Solve for x
    x = 19,353,910,761.84/159,532.60
  6. Step 6: Final answer
    x = 121,316.34

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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.