Home / 168,031.89-252,047.84-138,330.61

Finding the Fourth Proportional to 168,031.89, 252,047.84 and 138,330.61

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Solution

The fourth proportional to 168,031.89, 252,047.84 and 138,330.61 is: 207,495.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,031.89 : 252,047.84 = 138,330.61 : x
  2. Step 2: Convert to fraction form
    168,031.89/252,047.84 = 138,330.61/x
  3. Step 3: Cross multiply
    168,031.89x = 252,047.84 × 138,330.61
  4. Step 4: Simplify right side
    168,031.89x = 34,865,930,134.61
  5. Step 5: Solve for x
    x = 34,865,930,134.61/168,031.89
  6. Step 6: Final answer
    x = 207,495.91

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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.