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Finding the Fourth Proportional to 110,737.90, 152,765.14 and 72,480.60

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Solution

The fourth proportional to 110,737.90, 152,765.14 and 72,480.60 is: 99,988.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    110,737.90 : 152,765.14 = 72,480.60 : x
  2. Step 2: Convert to fraction form
    110,737.90/152,765.14 = 72,480.60/x
  3. Step 3: Cross multiply
    110,737.90x = 152,765.14 × 72,480.60
  4. Step 4: Simplify right side
    110,737.90x = 11,072,509,006.28
  5. Step 5: Solve for x
    x = 11,072,509,006.28/110,737.90
  6. Step 6: Final answer
    x = 99,988.43

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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.