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Finding the Fourth Proportional to 151,937.70, 228,052.35 and 77,142.30

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Solution

The fourth proportional to 151,937.70, 228,052.35 and 77,142.30 is: 115,787.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,937.70 : 228,052.35 = 77,142.30 : x
  2. Step 2: Convert to fraction form
    151,937.70/228,052.35 = 77,142.30/x
  3. Step 3: Cross multiply
    151,937.70x = 228,052.35 × 77,142.30
  4. Step 4: Simplify right side
    151,937.70x = 17,592,482,799.41
  5. Step 5: Solve for x
    x = 17,592,482,799.41/151,937.70
  6. Step 6: Final answer
    x = 115,787.48

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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.