Home / 127,729.32-176,271.94-71,140.70

Finding the Fourth Proportional to 127,729.32, 176,271.94 and 71,140.70

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Solution

The fourth proportional to 127,729.32, 176,271.94 and 71,140.70 is: 98,177.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,729.32 : 176,271.94 = 71,140.70 : x
  2. Step 2: Convert to fraction form
    127,729.32/176,271.94 = 71,140.70/x
  3. Step 3: Cross multiply
    127,729.32x = 176,271.94 × 71,140.70
  4. Step 4: Simplify right side
    127,729.32x = 12,540,109,201.96
  5. Step 5: Solve for x
    x = 12,540,109,201.96/127,729.32
  6. Step 6: Final answer
    x = 98,177.22

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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.