Home / 138,434.60-207,360.30-112,190.60

Finding the Fourth Proportional to 138,434.60, 207,360.30 and 112,190.60

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Solution

The fourth proportional to 138,434.60, 207,360.30 and 112,190.60 is: 168,049.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,434.60 : 207,360.30 = 112,190.60 : x
  2. Step 2: Convert to fraction form
    138,434.60/207,360.30 = 112,190.60/x
  3. Step 3: Cross multiply
    138,434.60x = 207,360.30 × 112,190.60
  4. Step 4: Simplify right side
    138,434.60x = 23,263,876,473.18
  5. Step 5: Solve for x
    x = 23,263,876,473.18/138,434.60
  6. Step 6: Final answer
    x = 168,049.58

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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.