Home / 127,649.88-176,156.76-71,074.62

Finding the Fourth Proportional to 127,649.88, 176,156.76 and 71,074.62

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Solution

The fourth proportional to 127,649.88, 176,156.76 and 71,074.62 is: 98,082.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,649.88 : 176,156.76 = 71,074.62 : x
  2. Step 2: Convert to fraction form
    127,649.88/176,156.76 = 71,074.62/x
  3. Step 3: Cross multiply
    127,649.88x = 176,156.76 × 71,074.62
  4. Step 4: Simplify right side
    127,649.88x = 12,520,274,777.43
  5. Step 5: Solve for x
    x = 12,520,274,777.43/127,649.88
  6. Step 6: Final answer
    x = 98,082.93

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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.