Home / 122,561.43-169,147.02-82,358.91

Finding the Fourth Proportional to 122,561.43, 169,147.02 and 82,358.91

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Solution

The fourth proportional to 122,561.43, 169,147.02 and 82,358.91 is: 113,663.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,561.43 : 169,147.02 = 82,358.91 : x
  2. Step 2: Convert to fraction form
    122,561.43/169,147.02 = 82,358.91/x
  3. Step 3: Cross multiply
    122,561.43x = 169,147.02 × 82,358.91
  4. Step 4: Simplify right side
    122,561.43x = 13,930,764,196.95
  5. Step 5: Solve for x
    x = 13,930,764,196.95/122,561.43
  6. Step 6: Final answer
    x = 113,663.53

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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.