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Finding the Fourth Proportional to 88,706.10, 133,059.15 and 72,959.70

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Solution

The fourth proportional to 88,706.10, 133,059.15 and 72,959.70 is: 109,439.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,706.10 : 133,059.15 = 72,959.70 : x
  2. Step 2: Convert to fraction form
    88,706.10/133,059.15 = 72,959.70/x
  3. Step 3: Cross multiply
    88,706.10x = 133,059.15 × 72,959.70
  4. Step 4: Simplify right side
    88,706.10x = 9,707,955,666.26
  5. Step 5: Solve for x
    x = 9,707,955,666.26/88,706.10
  6. Step 6: Final answer
    x = 109,439.55

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.