Home / 156,243.24-234,375.90-77,336.28

Finding the Fourth Proportional to 156,243.24, 234,375.90 and 77,336.28

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Solution

The fourth proportional to 156,243.24, 234,375.90 and 77,336.28 is: 116,009.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,243.24 : 234,375.90 = 77,336.28 : x
  2. Step 2: Convert to fraction form
    156,243.24/234,375.90 = 77,336.28/x
  3. Step 3: Cross multiply
    156,243.24x = 234,375.90 × 77,336.28
  4. Step 4: Simplify right side
    156,243.24x = 18,125,760,034.31
  5. Step 5: Solve for x
    x = 18,125,760,034.31/156,243.24
  6. Step 6: Final answer
    x = 116,009.88

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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.