Home / 231,152.12-318,996.24-130,550.12

Finding the Fourth Proportional to 231,152.12, 318,996.24 and 130,550.12

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Solution

The fourth proportional to 231,152.12, 318,996.24 and 130,550.12 is: 180,162.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    231,152.12 : 318,996.24 = 130,550.12 : x
  2. Step 2: Convert to fraction form
    231,152.12/318,996.24 = 130,550.12/x
  3. Step 3: Cross multiply
    231,152.12x = 318,996.24 × 130,550.12
  4. Step 4: Simplify right side
    231,152.12x = 41,644,997,411.55
  5. Step 5: Solve for x
    x = 41,644,997,411.55/231,152.12
  6. Step 6: Final answer
    x = 180,162.73

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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.