Home / 120,407.46-166,154.97-66,689.28

Finding the Fourth Proportional to 120,407.46, 166,154.97 and 66,689.28

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Solution

The fourth proportional to 120,407.46, 166,154.97 and 66,689.28 is: 92,027.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,407.46 : 166,154.97 = 66,689.28 : x
  2. Step 2: Convert to fraction form
    120,407.46/166,154.97 = 66,689.28/x
  3. Step 3: Cross multiply
    120,407.46x = 166,154.97 × 66,689.28
  4. Step 4: Simplify right side
    120,407.46x = 11,080,755,317.72
  5. Step 5: Solve for x
    x = 11,080,755,317.72/120,407.46
  6. Step 6: Final answer
    x = 92,027.15

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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.