Home / 155,003.76-231,901.35-135,876.56

Finding the Fourth Proportional to 155,003.76, 231,901.35 and 135,876.56

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Solution

The fourth proportional to 155,003.76, 231,901.35 and 135,876.56 is: 203,285.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,003.76 : 231,901.35 = 135,876.56 : x
  2. Step 2: Convert to fraction form
    155,003.76/231,901.35 = 135,876.56/x
  3. Step 3: Cross multiply
    155,003.76x = 231,901.35 × 135,876.56
  4. Step 4: Simplify right side
    155,003.76x = 31,509,955,858.47
  5. Step 5: Solve for x
    x = 31,509,955,858.47/155,003.76
  6. Step 6: Final answer
    x = 203,285.11

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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.