Home / 127,758.48-176,315.58-71,171.88

Finding the Fourth Proportional to 127,758.48, 176,315.58 and 71,171.88

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Solution

The fourth proportional to 127,758.48, 176,315.58 and 71,171.88 is: 98,222.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,758.48 : 176,315.58 = 71,171.88 : x
  2. Step 2: Convert to fraction form
    127,758.48/176,315.58 = 71,171.88/x
  3. Step 3: Cross multiply
    127,758.48x = 176,315.58 × 71,171.88
  4. Step 4: Simplify right side
    127,758.48x = 12,548,711,301.89
  5. Step 5: Solve for x
    x = 12,548,711,301.89/127,758.48
  6. Step 6: Final answer
    x = 98,222.14

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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.