Home / 103,470.24-142,675.92-69,877.92

Finding the Fourth Proportional to 103,470.24, 142,675.92 and 69,877.92

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Solution

The fourth proportional to 103,470.24, 142,675.92 and 69,877.92 is: 96,355.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,470.24 : 142,675.92 = 69,877.92 : x
  2. Step 2: Convert to fraction form
    103,470.24/142,675.92 = 69,877.92/x
  3. Step 3: Cross multiply
    103,470.24x = 142,675.92 × 69,877.92
  4. Step 4: Simplify right side
    103,470.24x = 9,969,896,523.69
  5. Step 5: Solve for x
    x = 9,969,896,523.69/103,470.24
  6. Step 6: Final answer
    x = 96,355.21

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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.