Home / 122,937.72-169,640.01-69,221.36

Finding the Fourth Proportional to 122,937.72, 169,640.01 and 69,221.36

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Solution

The fourth proportional to 122,937.72, 169,640.01 and 69,221.36 is: 95,517.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,937.72 : 169,640.01 = 69,221.36 : x
  2. Step 2: Convert to fraction form
    122,937.72/169,640.01 = 69,221.36/x
  3. Step 3: Cross multiply
    122,937.72x = 169,640.01 × 69,221.36
  4. Step 4: Simplify right side
    122,937.72x = 11,742,711,354.41
  5. Step 5: Solve for x
    x = 11,742,711,354.41/122,937.72
  6. Step 6: Final answer
    x = 95,517.56

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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.