Home / 120,502.89-166,275.18-69,517.58

Finding the Fourth Proportional to 120,502.89, 166,275.18 and 69,517.58

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Solution

The fourth proportional to 120,502.89, 166,275.18 and 69,517.58 is: 95,923.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,502.89 : 166,275.18 = 69,517.58 : x
  2. Step 2: Convert to fraction form
    120,502.89/166,275.18 = 69,517.58/x
  3. Step 3: Cross multiply
    120,502.89x = 166,275.18 × 69,517.58
  4. Step 4: Simplify right side
    120,502.89x = 11,559,047,296.29
  5. Step 5: Solve for x
    x = 11,559,047,296.29/120,502.89
  6. Step 6: Final answer
    x = 95,923.40

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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.