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Finding the Fourth Proportional to 155,103.80, 232,655.70 and 101,959.70

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Solution

The fourth proportional to 155,103.80, 232,655.70 and 101,959.70 is: 152,939.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,103.80 : 232,655.70 = 101,959.70 : x
  2. Step 2: Convert to fraction form
    155,103.80/232,655.70 = 101,959.70/x
  3. Step 3: Cross multiply
    155,103.80x = 232,655.70 × 101,959.70
  4. Step 4: Simplify right side
    155,103.80x = 23,721,505,375.29
  5. Step 5: Solve for x
    x = 23,721,505,375.29/155,103.80
  6. Step 6: Final answer
    x = 152,939.55

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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.