Home / 126,602.61-174,755.55-72,909.02

Finding the Fourth Proportional to 126,602.61, 174,755.55 and 72,909.02

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Solution

The fourth proportional to 126,602.61, 174,755.55 and 72,909.02 is: 100,639.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,602.61 : 174,755.55 = 72,909.02 : x
  2. Step 2: Convert to fraction form
    126,602.61/174,755.55 = 72,909.02/x
  3. Step 3: Cross multiply
    126,602.61x = 174,755.55 × 72,909.02
  4. Step 4: Simplify right side
    126,602.61x = 12,741,255,016.28
  5. Step 5: Solve for x
    x = 12,741,255,016.28/126,602.61
  6. Step 6: Final answer
    x = 100,639.75

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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.