Home / 120,569.49-166,385.61-66,853.13

Finding the Fourth Proportional to 120,569.49, 166,385.61 and 66,853.13

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Solution

The fourth proportional to 120,569.49, 166,385.61 and 66,853.13 is: 92,257.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,569.49 : 166,385.61 = 66,853.13 : x
  2. Step 2: Convert to fraction form
    120,569.49/166,385.61 = 66,853.13/x
  3. Step 3: Cross multiply
    120,569.49x = 166,385.61 × 66,853.13
  4. Step 4: Simplify right side
    120,569.49x = 11,123,397,983.53
  5. Step 5: Solve for x
    x = 11,123,397,983.53/120,569.49
  6. Step 6: Final answer
    x = 92,257.15

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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.