Home / 99,505.93-137,084.56-69,239.27

Finding the Fourth Proportional to 99,505.93, 137,084.56 and 69,239.27

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Solution

The fourth proportional to 99,505.93, 137,084.56 and 69,239.27 is: 95,387.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,505.93 : 137,084.56 = 69,239.27 : x
  2. Step 2: Convert to fraction form
    99,505.93/137,084.56 = 69,239.27/x
  3. Step 3: Cross multiply
    99,505.93x = 137,084.56 × 69,239.27
  4. Step 4: Simplify right side
    99,505.93x = 9,491,634,862.67
  5. Step 5: Solve for x
    x = 9,491,634,862.67/99,505.93
  6. Step 6: Final answer
    x = 95,387.63

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.