Home / 138,046.20-207,069.30-93,431.40

Finding the Fourth Proportional to 138,046.20, 207,069.30 and 93,431.40

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Solution

The fourth proportional to 138,046.20, 207,069.30 and 93,431.40 is: 140,147.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,046.20 : 207,069.30 = 93,431.40 : x
  2. Step 2: Convert to fraction form
    138,046.20/207,069.30 = 93,431.40/x
  3. Step 3: Cross multiply
    138,046.20x = 207,069.30 × 93,431.40
  4. Step 4: Simplify right side
    138,046.20x = 19,346,774,596.02
  5. Step 5: Solve for x
    x = 19,346,774,596.02/138,046.20
  6. Step 6: Final answer
    x = 140,147.10

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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.