Home / 120,425.59-166,187.28-66,714.09

Finding the Fourth Proportional to 120,425.59, 166,187.28 and 66,714.09

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Solution

The fourth proportional to 120,425.59, 166,187.28 and 66,714.09 is: 92,065.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,425.59 : 166,187.28 = 66,714.09 : x
  2. Step 2: Convert to fraction form
    120,425.59/166,187.28 = 66,714.09/x
  3. Step 3: Cross multiply
    120,425.59x = 166,187.28 × 66,714.09
  4. Step 4: Simplify right side
    120,425.59x = 11,087,033,154.78
  5. Step 5: Solve for x
    x = 11,087,033,154.78/120,425.59
  6. Step 6: Final answer
    x = 92,065.43

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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.