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Finding the Fourth Proportional to 127,082.79, 175,382.46 and 70,494.21

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Solution

The fourth proportional to 127,082.79, 175,382.46 and 70,494.21 is: 97,286.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,082.79 : 175,382.46 = 70,494.21 : x
  2. Step 2: Convert to fraction form
    127,082.79/175,382.46 = 70,494.21/x
  3. Step 3: Cross multiply
    127,082.79x = 175,382.46 × 70,494.21
  4. Step 4: Simplify right side
    127,082.79x = 12,363,447,965.56
  5. Step 5: Solve for x
    x = 12,363,447,965.56/127,082.79
  6. Step 6: Final answer
    x = 97,286.56

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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.