Home / 127,676.18-176,194.36-71,088.78

Finding the Fourth Proportional to 127,676.18, 176,194.36 and 71,088.78

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Solution

The fourth proportional to 127,676.18, 176,194.36 and 71,088.78 is: 98,103.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,676.18 : 176,194.36 = 71,088.78 : x
  2. Step 2: Convert to fraction form
    127,676.18/176,194.36 = 71,088.78/x
  3. Step 3: Cross multiply
    127,676.18x = 176,194.36 × 71,088.78
  4. Step 4: Simplify right side
    127,676.18x = 12,525,442,095.28
  5. Step 5: Solve for x
    x = 12,525,442,095.28/127,676.18
  6. Step 6: Final answer
    x = 98,103.20

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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.