Home / 94,221.96-129,920.24-72,663

Finding the Fourth Proportional to 94,221.96, 129,920.24 and 72,663

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Solution

The fourth proportional to 94,221.96, 129,920.24 and 72,663 is: 100,193.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    94,221.96 : 129,920.24 = 72,663 : x
  2. Step 2: Convert to fraction form
    94,221.96/129,920.24 = 72,663/x
  3. Step 3: Cross multiply
    94,221.96x = 129,920.24 × 72,663
  4. Step 4: Simplify right side
    94,221.96x = 9,440,394,399.12
  5. Step 5: Solve for x
    x = 9,440,394,399.12/94,221.96
  6. Step 6: Final answer
    x = 100,193.14

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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.