Home / 113,134.88-156,121.08-67,837.85

Finding the Fourth Proportional to 113,134.88, 156,121.08 and 67,837.85

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Solution

The fourth proportional to 113,134.88, 156,121.08 and 67,837.85 is: 93,613.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,134.88 : 156,121.08 = 67,837.85 : x
  2. Step 2: Convert to fraction form
    113,134.88/156,121.08 = 67,837.85/x
  3. Step 3: Cross multiply
    113,134.88x = 156,121.08 × 67,837.85
  4. Step 4: Simplify right side
    113,134.88x = 10,590,918,406.88
  5. Step 5: Solve for x
    x = 10,590,918,406.88/113,134.88
  6. Step 6: Final answer
    x = 93,613.20

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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.