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Finding the Fourth Proportional to 159,503.78, 239,292.69 and 54,323.66

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Solution

The fourth proportional to 159,503.78, 239,292.69 and 54,323.66 is: 81,498.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,503.78 : 239,292.69 = 54,323.66 : x
  2. Step 2: Convert to fraction form
    159,503.78/239,292.69 = 54,323.66/x
  3. Step 3: Cross multiply
    159,503.78x = 239,292.69 × 54,323.66
  4. Step 4: Simplify right side
    159,503.78x = 12,999,254,732.05
  5. Step 5: Solve for x
    x = 12,999,254,732.05/159,503.78
  6. Step 6: Final answer
    x = 81,498.10

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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.