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Finding the Fourth Proportional to 156,775.20, 234,817.20 and 136,039.20

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Solution

The fourth proportional to 156,775.20, 234,817.20 and 136,039.20 is: 203,758.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,775.20 : 234,817.20 = 136,039.20 : x
  2. Step 2: Convert to fraction form
    156,775.20/234,817.20 = 136,039.20/x
  3. Step 3: Cross multiply
    156,775.20x = 234,817.20 × 136,039.20
  4. Step 4: Simplify right side
    156,775.20x = 31,944,344,034.24
  5. Step 5: Solve for x
    x = 31,944,344,034.24/156,775.20
  6. Step 6: Final answer
    x = 203,758.91

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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.