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Finding the Fourth Proportional to 148,872.47, 223,306.88 and 69,930.88

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Solution

The fourth proportional to 148,872.47, 223,306.88 and 69,930.88 is: 104,895.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,872.47 : 223,306.88 = 69,930.88 : x
  2. Step 2: Convert to fraction form
    148,872.47/223,306.88 = 69,930.88/x
  3. Step 3: Cross multiply
    148,872.47x = 223,306.88 × 69,930.88
  4. Step 4: Simplify right side
    148,872.47x = 15,616,045,720.53
  5. Step 5: Solve for x
    x = 15,616,045,720.53/148,872.47
  6. Step 6: Final answer
    x = 104,895.46

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.