Home / 129,052.01-178,120.26-71,711.03

Finding the Fourth Proportional to 129,052.01, 178,120.26 and 71,711.03

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Solution

The fourth proportional to 129,052.01, 178,120.26 and 71,711.03 is: 98,977.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,052.01 : 178,120.26 = 71,711.03 : x
  2. Step 2: Convert to fraction form
    129,052.01/178,120.26 = 71,711.03/x
  3. Step 3: Cross multiply
    129,052.01x = 178,120.26 × 71,711.03
  4. Step 4: Simplify right side
    129,052.01x = 12,773,187,753.77
  5. Step 5: Solve for x
    x = 12,773,187,753.77/129,052.01
  6. Step 6: Final answer
    x = 98,977.05

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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.