Home / 127,729.24-176,266.26-71,140.52

Finding the Fourth Proportional to 127,729.24, 176,266.26 and 71,140.52

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Solution

The fourth proportional to 127,729.24, 176,266.26 and 71,140.52 is: 98,173.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,729.24 : 176,266.26 = 71,140.52 : x
  2. Step 2: Convert to fraction form
    127,729.24/176,266.26 = 71,140.52/x
  3. Step 3: Cross multiply
    127,729.24x = 176,266.26 × 71,140.52
  4. Step 4: Simplify right side
    127,729.24x = 12,539,673,394.86
  5. Step 5: Solve for x
    x = 12,539,673,394.86/127,729.24
  6. Step 6: Final answer
    x = 98,173.87

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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.