Home / 127,879.28-176,469.36-70,521.02

Finding the Fourth Proportional to 127,879.28, 176,469.36 and 70,521.02

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Solution

The fourth proportional to 127,879.28, 176,469.36 and 70,521.02 is: 97,316.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,879.28 : 176,469.36 = 70,521.02 : x
  2. Step 2: Convert to fraction form
    127,879.28/176,469.36 = 70,521.02/x
  3. Step 3: Cross multiply
    127,879.28x = 176,469.36 × 70,521.02
  4. Step 4: Simplify right side
    127,879.28x = 12,444,799,265.95
  5. Step 5: Solve for x
    x = 12,444,799,265.95/127,879.28
  6. Step 6: Final answer
    x = 97,316.78

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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.