Home / 120,188.97-165,841.02-66,463.50

Finding the Fourth Proportional to 120,188.97, 165,841.02 and 66,463.50

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Solution

The fourth proportional to 120,188.97, 165,841.02 and 66,463.50 is: 91,708.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,188.97 : 165,841.02 = 66,463.50 : x
  2. Step 2: Convert to fraction form
    120,188.97/165,841.02 = 66,463.50/x
  3. Step 3: Cross multiply
    120,188.97x = 165,841.02 × 66,463.50
  4. Step 4: Simplify right side
    120,188.97x = 11,022,374,632.77
  5. Step 5: Solve for x
    x = 11,022,374,632.77/120,188.97
  6. Step 6: Final answer
    x = 91,708.70

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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.