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Finding the Fourth Proportional to 134,146.78, 185,082.18 and 80,412.19

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Solution

The fourth proportional to 134,146.78, 185,082.18 and 80,412.19 is: 110,944.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,146.78 : 185,082.18 = 80,412.19 : x
  2. Step 2: Convert to fraction form
    134,146.78/185,082.18 = 80,412.19/x
  3. Step 3: Cross multiply
    134,146.78x = 185,082.18 × 80,412.19
  4. Step 4: Simplify right side
    134,146.78x = 14,882,863,262.61
  5. Step 5: Solve for x
    x = 14,882,863,262.61/134,146.78
  6. Step 6: Final answer
    x = 110,944.62

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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.