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Finding the Fourth Proportional to 185,138.64, 277,520.96 and 72,897.62

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Solution

The fourth proportional to 185,138.64, 277,520.96 and 72,897.62 is: 109,272.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,138.64 : 277,520.96 = 72,897.62 : x
  2. Step 2: Convert to fraction form
    185,138.64/277,520.96 = 72,897.62/x
  3. Step 3: Cross multiply
    185,138.64x = 277,520.96 × 72,897.62
  4. Step 4: Simplify right side
    185,138.64x = 20,230,617,484.12
  5. Step 5: Solve for x
    x = 20,230,617,484.12/185,138.64
  6. Step 6: Final answer
    x = 109,272.80

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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.