Home / 120,308.18-166,010.65-66,589.92

Finding the Fourth Proportional to 120,308.18, 166,010.65 and 66,589.92

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Solution

The fourth proportional to 120,308.18, 166,010.65 and 66,589.92 is: 91,885.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,308.18 : 166,010.65 = 66,589.92 : x
  2. Step 2: Convert to fraction form
    120,308.18/166,010.65 = 66,589.92/x
  3. Step 3: Cross multiply
    120,308.18x = 166,010.65 × 66,589.92
  4. Step 4: Simplify right side
    120,308.18x = 11,054,635,736.17
  5. Step 5: Solve for x
    x = 11,054,635,736.17/120,308.18
  6. Step 6: Final answer
    x = 91,885.99

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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.