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Finding the Fourth Proportional to 124,419.28, 171,693.48 and 69,969.88

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Solution

The fourth proportional to 124,419.28, 171,693.48 and 69,969.88 is: 96,555.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,419.28 : 171,693.48 = 69,969.88 : x
  2. Step 2: Convert to fraction form
    124,419.28/171,693.48 = 69,969.88/x
  3. Step 3: Cross multiply
    124,419.28x = 171,693.48 × 69,969.88
  4. Step 4: Simplify right side
    124,419.28x = 12,013,372,192.38
  5. Step 5: Solve for x
    x = 12,013,372,192.38/124,419.28
  6. Step 6: Final answer
    x = 96,555.55

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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.