Home / 149,959.20-207,098.64-129,718.92

Finding the Fourth Proportional to 149,959.20, 207,098.64 and 129,718.92

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Solution

The fourth proportional to 149,959.20, 207,098.64 and 129,718.92 is: 179,146.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,959.20 : 207,098.64 = 129,718.92 : x
  2. Step 2: Convert to fraction form
    149,959.20/207,098.64 = 129,718.92/x
  3. Step 3: Cross multiply
    149,959.20x = 207,098.64 × 129,718.92
  4. Step 4: Simplify right side
    149,959.20x = 26,864,611,914.27
  5. Step 5: Solve for x
    x = 26,864,611,914.27/149,959.20
  6. Step 6: Final answer
    x = 179,146.14

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.