Home / 155,129.40-232,694.10-138,216.60

Finding the Fourth Proportional to 155,129.40, 232,694.10 and 138,216.60

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Solution

The fourth proportional to 155,129.40, 232,694.10 and 138,216.60 is: 207,324.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,129.40 : 232,694.10 = 138,216.60 : x
  2. Step 2: Convert to fraction form
    155,129.40/232,694.10 = 138,216.60/x
  3. Step 3: Cross multiply
    155,129.40x = 232,694.10 × 138,216.60
  4. Step 4: Simplify right side
    155,129.40x = 32,162,187,342.06
  5. Step 5: Solve for x
    x = 32,162,187,342.06/155,129.40
  6. Step 6: Final answer
    x = 207,324.90

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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.