Home / 138,624.18-207,949.37-38,784.39

Finding the Fourth Proportional to 138,624.18, 207,949.37 and 38,784.39

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Solution

The fourth proportional to 138,624.18, 207,949.37 and 38,784.39 is: 58,180.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,624.18 : 207,949.37 = 38,784.39 : x
  2. Step 2: Convert to fraction form
    138,624.18/207,949.37 = 38,784.39/x
  3. Step 3: Cross multiply
    138,624.18x = 207,949.37 × 38,784.39
  4. Step 4: Simplify right side
    138,624.18x = 8,065,189,272.41
  5. Step 5: Solve for x
    x = 8,065,189,272.41/138,624.18
  6. Step 6: Final answer
    x = 58,180.25

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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.