Home / 138,129.30-207,072.45-93,611.70

Finding the Fourth Proportional to 138,129.30, 207,072.45 and 93,611.70

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Solution

The fourth proportional to 138,129.30, 207,072.45 and 93,611.70 is: 140,335.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,129.30 : 207,072.45 = 93,611.70 : x
  2. Step 2: Convert to fraction form
    138,129.30/207,072.45 = 93,611.70/x
  3. Step 3: Cross multiply
    138,129.30x = 207,072.45 × 93,611.70
  4. Step 4: Simplify right side
    138,129.30x = 19,384,404,067.67
  5. Step 5: Solve for x
    x = 19,384,404,067.67/138,129.30
  6. Step 6: Final answer
    x = 140,335.21

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1.5x scale

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.