Home / 231,142.48-318,953.16-130,521.04

Finding the Fourth Proportional to 231,142.48, 318,953.16 and 130,521.04

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Solution

The fourth proportional to 231,142.48, 318,953.16 and 130,521.04 is: 180,105.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    231,142.48 : 318,953.16 = 130,521.04 : x
  2. Step 2: Convert to fraction form
    231,142.48/318,953.16 = 130,521.04/x
  3. Step 3: Cross multiply
    231,142.48x = 318,953.16 × 130,521.04
  4. Step 4: Simplify right side
    231,142.48x = 41,630,098,154.49
  5. Step 5: Solve for x
    x = 41,630,098,154.49/231,142.48
  6. Step 6: Final answer
    x = 180,105.79

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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.