Home / 231,022.62-318,777.30-129,035.52

Finding the Fourth Proportional to 231,022.62, 318,777.30 and 129,035.52

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Solution

The fourth proportional to 231,022.62, 318,777.30 and 129,035.52 is: 178,050.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    231,022.62 : 318,777.30 = 129,035.52 : x
  2. Step 2: Convert to fraction form
    231,022.62/318,777.30 = 129,035.52/x
  3. Step 3: Cross multiply
    231,022.62x = 318,777.30 × 129,035.52
  4. Step 4: Simplify right side
    231,022.62x = 41,133,594,669.70
  5. Step 5: Solve for x
    x = 41,133,594,669.70/231,022.62
  6. Step 6: Final answer
    x = 178,050.07

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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.