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Finding the Fourth Proportional to 101,599.71, 140,475.15 and 88,988.28

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Solution

The fourth proportional to 101,599.71, 140,475.15 and 88,988.28 is: 123,038.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,599.71 : 140,475.15 = 88,988.28 : x
  2. Step 2: Convert to fraction form
    101,599.71/140,475.15 = 88,988.28/x
  3. Step 3: Cross multiply
    101,599.71x = 140,475.15 × 88,988.28
  4. Step 4: Simplify right side
    101,599.71x = 12,500,641,981.24
  5. Step 5: Solve for x
    x = 12,500,641,981.24/101,599.71
  6. Step 6: Final answer
    x = 123,038.17

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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.