Home / 129,402.48-194,117.76-40,658.88

Finding the Fourth Proportional to 129,402.48, 194,117.76 and 40,658.88

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Solution

The fourth proportional to 129,402.48, 194,117.76 and 40,658.88 is: 60,992.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,402.48 : 194,117.76 = 40,658.88 : x
  2. Step 2: Convert to fraction form
    129,402.48/194,117.76 = 40,658.88/x
  3. Step 3: Cross multiply
    129,402.48x = 194,117.76 × 40,658.88
  4. Step 4: Simplify right side
    129,402.48x = 7,892,610,709.71
  5. Step 5: Solve for x
    x = 7,892,610,709.71/129,402.48
  6. Step 6: Final answer
    x = 60,992.73

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.