Home / 129,592.27-178,836.55-73,021.87

Finding the Fourth Proportional to 129,592.27, 178,836.55 and 73,021.87

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Solution

The fourth proportional to 129,592.27, 178,836.55 and 73,021.87 is: 100,769.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,592.27 : 178,836.55 = 73,021.87 : x
  2. Step 2: Convert to fraction form
    129,592.27/178,836.55 = 73,021.87/x
  3. Step 3: Cross multiply
    129,592.27x = 178,836.55 × 73,021.87
  4. Step 4: Simplify right side
    129,592.27x = 13,058,979,305.35
  5. Step 5: Solve for x
    x = 13,058,979,305.35/129,592.27
  6. Step 6: Final answer
    x = 100,769.74

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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.