Home / 156,531.20-234,382.08-82,503.68

Finding the Fourth Proportional to 156,531.20, 234,382.08 and 82,503.68

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Solution

The fourth proportional to 156,531.20, 234,382.08 and 82,503.68 is: 123,536.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,531.20 : 234,382.08 = 82,503.68 : x
  2. Step 2: Convert to fraction form
    156,531.20/234,382.08 = 82,503.68/x
  3. Step 3: Cross multiply
    156,531.20x = 234,382.08 × 82,503.68
  4. Step 4: Simplify right side
    156,531.20x = 19,337,384,126.05
  5. Step 5: Solve for x
    x = 19,337,384,126.05/156,531.20
  6. Step 6: Final answer
    x = 123,536.93

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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.