Home / 103,499.28-142,829.10-58,787.28

Finding the Fourth Proportional to 103,499.28, 142,829.10 and 58,787.28

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Solution

The fourth proportional to 103,499.28, 142,829.10 and 58,787.28 is: 81,126.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,499.28 : 142,829.10 = 58,787.28 : x
  2. Step 2: Convert to fraction form
    103,499.28/142,829.10 = 58,787.28/x
  3. Step 3: Cross multiply
    103,499.28x = 142,829.10 × 58,787.28
  4. Step 4: Simplify right side
    103,499.28x = 8,396,534,293.85
  5. Step 5: Solve for x
    x = 8,396,534,293.85/103,499.28
  6. Step 6: Final answer
    x = 81,126.50

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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.