Home / 138,259.38-207,177.78-93,113.79

Finding the Fourth Proportional to 138,259.38, 207,177.78 and 93,113.79

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Solution

The fourth proportional to 138,259.38, 207,177.78 and 93,113.79 is: 139,528.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,259.38 : 207,177.78 = 93,113.79 : x
  2. Step 2: Convert to fraction form
    138,259.38/207,177.78 = 93,113.79/x
  3. Step 3: Cross multiply
    138,259.38x = 207,177.78 × 93,113.79
  4. Step 4: Simplify right side
    138,259.38x = 19,291,108,299.59
  5. Step 5: Solve for x
    x = 19,291,108,299.59/138,259.38
  6. Step 6: Final answer
    x = 139,528.39

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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.