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Finding the Fourth Proportional to 159,473.97, 239,127.90 and 75,211.51

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Solution

The fourth proportional to 159,473.97, 239,127.90 and 75,211.51 is: 112,778.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,473.97 : 239,127.90 = 75,211.51 : x
  2. Step 2: Convert to fraction form
    159,473.97/239,127.90 = 75,211.51/x
  3. Step 3: Cross multiply
    159,473.97x = 239,127.90 × 75,211.51
  4. Step 4: Simplify right side
    159,473.97x = 17,985,171,212.01
  5. Step 5: Solve for x
    x = 17,985,171,212.01/159,473.97
  6. Step 6: Final answer
    x = 112,778.10

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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.