Home / 231,002.55-318,776.94-129,025.04

Finding the Fourth Proportional to 231,002.55, 318,776.94 and 129,025.04

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Solution

The fourth proportional to 231,002.55, 318,776.94 and 129,025.04 is: 178,050.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    231,002.55 : 318,776.94 = 129,025.04 : x
  2. Step 2: Convert to fraction form
    231,002.55/318,776.94 = 129,025.04/x
  3. Step 3: Cross multiply
    231,002.55x = 318,776.94 × 129,025.04
  4. Step 4: Simplify right side
    231,002.55x = 41,130,205,840.69
  5. Step 5: Solve for x
    x = 41,130,205,840.69/231,002.55
  6. Step 6: Final answer
    x = 178,050.87

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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.