Home / 127,677.75-176,198.54-71,087.91

Finding the Fourth Proportional to 127,677.75, 176,198.54 and 71,087.91

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Solution

The fourth proportional to 127,677.75, 176,198.54 and 71,087.91 is: 98,103.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,677.75 : 176,198.54 = 71,087.91 : x
  2. Step 2: Convert to fraction form
    127,677.75/176,198.54 = 71,087.91/x
  3. Step 3: Cross multiply
    127,677.75x = 176,198.54 × 71,087.91
  4. Step 4: Simplify right side
    127,677.75x = 12,525,585,598.21
  5. Step 5: Solve for x
    x = 12,525,585,598.21/127,677.75
  6. Step 6: Final answer
    x = 98,103.12

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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.