Home / 129,049.17-178,092.88-71,692.82

Finding the Fourth Proportional to 129,049.17, 178,092.88 and 71,692.82

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Solution

The fourth proportional to 129,049.17, 178,092.88 and 71,692.82 is: 98,938.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,049.17 : 178,092.88 = 71,692.82 : x
  2. Step 2: Convert to fraction form
    129,049.17/178,092.88 = 71,692.82/x
  3. Step 3: Cross multiply
    129,049.17x = 178,092.88 × 71,692.82
  4. Step 4: Simplify right side
    129,049.17x = 12,767,980,888.16
  5. Step 5: Solve for x
    x = 12,767,980,888.16/129,049.17
  6. Step 6: Final answer
    x = 98,938.88

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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.