Home / 138,478.11-207,901.69-93,650.07

Finding the Fourth Proportional to 138,478.11, 207,901.69 and 93,650.07

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Solution

The fourth proportional to 138,478.11, 207,901.69 and 93,650.07 is: 140,599.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,478.11 : 207,901.69 = 93,650.07 : x
  2. Step 2: Convert to fraction form
    138,478.11/207,901.69 = 93,650.07/x
  3. Step 3: Cross multiply
    138,478.11x = 207,901.69 × 93,650.07
  4. Step 4: Simplify right side
    138,478.11x = 19,470,008,367.12
  5. Step 5: Solve for x
    x = 19,470,008,367.12/138,478.11
  6. Step 6: Final answer
    x = 140,599.90

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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.