Home / 138,048.20-207,072.30-93,433.40

Finding the Fourth Proportional to 138,048.20, 207,072.30 and 93,433.40

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Solution

The fourth proportional to 138,048.20, 207,072.30 and 93,433.40 is: 140,150.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,048.20 : 207,072.30 = 93,433.40 : x
  2. Step 2: Convert to fraction form
    138,048.20/207,072.30 = 93,433.40/x
  3. Step 3: Cross multiply
    138,048.20x = 207,072.30 × 93,433.40
  4. Step 4: Simplify right side
    138,048.20x = 19,347,469,034.82
  5. Step 5: Solve for x
    x = 19,347,469,034.82/138,048.20
  6. Step 6: Final answer
    x = 140,150.10

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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.