Home / 83,532.47-125,187.83-72,386.97

Finding the Fourth Proportional to 83,532.47, 125,187.83 and 72,386.97

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Solution

The fourth proportional to 83,532.47, 125,187.83 and 72,386.97 is: 108,484.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,532.47 : 125,187.83 = 72,386.97 : x
  2. Step 2: Convert to fraction form
    83,532.47/125,187.83 = 72,386.97/x
  3. Step 3: Cross multiply
    83,532.47x = 125,187.83 × 72,386.97
  4. Step 4: Simplify right side
    83,532.47x = 9,061,967,134.64
  5. Step 5: Solve for x
    x = 9,061,967,134.64/83,532.47
  6. Step 6: Final answer
    x = 108,484.37

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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.