Home / 129,546.27-178,672.23-84,238.92

Finding the Fourth Proportional to 129,546.27, 178,672.23 and 84,238.92

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Solution

The fourth proportional to 129,546.27, 178,672.23 and 84,238.92 is: 116,183.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,546.27 : 178,672.23 = 84,238.92 : x
  2. Step 2: Convert to fraction form
    129,546.27/178,672.23 = 84,238.92/x
  3. Step 3: Cross multiply
    129,546.27x = 178,672.23 × 84,238.92
  4. Step 4: Simplify right side
    129,546.27x = 15,051,155,689.19
  5. Step 5: Solve for x
    x = 15,051,155,689.19/129,546.27
  6. Step 6: Final answer
    x = 116,183.63

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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.