Home / 157,414.10-236,121.15-86,555.30

Finding the Fourth Proportional to 157,414.10, 236,121.15 and 86,555.30

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Solution

The fourth proportional to 157,414.10, 236,121.15 and 86,555.30 is: 129,832.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,414.10 : 236,121.15 = 86,555.30 : x
  2. Step 2: Convert to fraction form
    157,414.10/236,121.15 = 86,555.30/x
  3. Step 3: Cross multiply
    157,414.10x = 236,121.15 × 86,555.30
  4. Step 4: Simplify right side
    157,414.10x = 20,437,536,974.60
  5. Step 5: Solve for x
    x = 20,437,536,974.60/157,414.10
  6. Step 6: Final answer
    x = 129,832.95

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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.