Home / 120,451.89-166,281.39-84,672.57

Finding the Fourth Proportional to 120,451.89, 166,281.39 and 84,672.57

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Solution

The fourth proportional to 120,451.89, 166,281.39 and 84,672.57 is: 116,888.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,451.89 : 166,281.39 = 84,672.57 : x
  2. Step 2: Convert to fraction form
    120,451.89/166,281.39 = 84,672.57/x
  3. Step 3: Cross multiply
    120,451.89x = 166,281.39 × 84,672.57
  4. Step 4: Simplify right side
    120,451.89x = 14,079,472,634.47
  5. Step 5: Solve for x
    x = 14,079,472,634.47/120,451.89
  6. Step 6: Final answer
    x = 116,888.76

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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.