Home / 138,328.20-207,492.30-136,359.90

Finding the Fourth Proportional to 138,328.20, 207,492.30 and 136,359.90

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Solution

The fourth proportional to 138,328.20, 207,492.30 and 136,359.90 is: 204,539.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,328.20 : 207,492.30 = 136,359.90 : x
  2. Step 2: Convert to fraction form
    138,328.20/207,492.30 = 136,359.90/x
  3. Step 3: Cross multiply
    138,328.20x = 207,492.30 × 136,359.90
  4. Step 4: Simplify right side
    138,328.20x = 28,293,629,278.77
  5. Step 5: Solve for x
    x = 28,293,629,278.77/138,328.20
  6. Step 6: Final answer
    x = 204,539.85

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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.