Home / 129,637.50-178,915.59-73,059.18

Finding the Fourth Proportional to 129,637.50, 178,915.59 and 73,059.18

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Solution

The fourth proportional to 129,637.50, 178,915.59 and 73,059.18 is: 100,830.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,637.50 : 178,915.59 = 73,059.18 : x
  2. Step 2: Convert to fraction form
    129,637.50/178,915.59 = 73,059.18/x
  3. Step 3: Cross multiply
    129,637.50x = 178,915.59 × 73,059.18
  4. Step 4: Simplify right side
    129,637.50x = 13,071,426,294.62
  5. Step 5: Solve for x
    x = 13,071,426,294.62/129,637.50
  6. Step 6: Final answer
    x = 100,830.60

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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.