Home / 230,581.04-318,206.64-129,979.04

Finding the Fourth Proportional to 230,581.04, 318,206.64 and 129,979.04

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Solution

The fourth proportional to 230,581.04, 318,206.64 and 129,979.04 is: 179,373.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    230,581.04 : 318,206.64 = 129,979.04 : x
  2. Step 2: Convert to fraction form
    230,581.04/318,206.64 = 129,979.04/x
  3. Step 3: Cross multiply
    230,581.04x = 318,206.64 × 129,979.04
  4. Step 4: Simplify right side
    230,581.04x = 41,360,193,588.83
  5. Step 5: Solve for x
    x = 41,360,193,588.83/230,581.04
  6. Step 6: Final answer
    x = 179,373.78

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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.