Home / 127,808.37-176,375.75-71,218.53

Finding the Fourth Proportional to 127,808.37, 176,375.75 and 71,218.53

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Solution

The fourth proportional to 127,808.37, 176,375.75 and 71,218.53 is: 98,281.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,808.37 : 176,375.75 = 71,218.53 : x
  2. Step 2: Convert to fraction form
    127,808.37/176,375.75 = 71,218.53/x
  3. Step 3: Cross multiply
    127,808.37x = 176,375.75 × 71,218.53
  4. Step 4: Simplify right side
    127,808.37x = 12,561,221,286.55
  5. Step 5: Solve for x
    x = 12,561,221,286.55/127,808.37
  6. Step 6: Final answer
    x = 98,281.68

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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.