Home / 138,325.60-207,488.40-96,335.20

Finding the Fourth Proportional to 138,325.60, 207,488.40 and 96,335.20

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Solution

The fourth proportional to 138,325.60, 207,488.40 and 96,335.20 is: 144,502.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,325.60 : 207,488.40 = 96,335.20 : x
  2. Step 2: Convert to fraction form
    138,325.60/207,488.40 = 96,335.20/x
  3. Step 3: Cross multiply
    138,325.60x = 207,488.40 × 96,335.20
  4. Step 4: Simplify right side
    138,325.60x = 19,988,436,511.68
  5. Step 5: Solve for x
    x = 19,988,436,511.68/138,325.60
  6. Step 6: Final answer
    x = 144,502.80

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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.