Home / 127,860.40-176,443.68-71,270.56

Finding the Fourth Proportional to 127,860.40, 176,443.68 and 71,270.56

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Solution

The fourth proportional to 127,860.40, 176,443.68 and 71,270.56 is: 98,351.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,860.40 : 176,443.68 = 71,270.56 : x
  2. Step 2: Convert to fraction form
    127,860.40/176,443.68 = 71,270.56/x
  3. Step 3: Cross multiply
    127,860.40x = 176,443.68 × 71,270.56
  4. Step 4: Simplify right side
    127,860.40x = 12,575,239,882.06
  5. Step 5: Solve for x
    x = 12,575,239,882.06/127,860.40
  6. Step 6: Final answer
    x = 98,351.33

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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.