Home / 120,598.08-166,425.28-66,891.20

Finding the Fourth Proportional to 120,598.08, 166,425.28 and 66,891.20

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Solution

The fourth proportional to 120,598.08, 166,425.28 and 66,891.20 is: 92,309.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,598.08 : 166,425.28 = 66,891.20 : x
  2. Step 2: Convert to fraction form
    120,598.08/166,425.28 = 66,891.20/x
  3. Step 3: Cross multiply
    120,598.08x = 166,425.28 × 66,891.20
  4. Step 4: Simplify right side
    120,598.08x = 11,132,386,689.54
  5. Step 5: Solve for x
    x = 11,132,386,689.54/120,598.08
  6. Step 6: Final answer
    x = 92,309.82

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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.