Home / 127,729.30-176,271.87-71,140.66

Finding the Fourth Proportional to 127,729.30, 176,271.87 and 71,140.66

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Solution

The fourth proportional to 127,729.30, 176,271.87 and 71,140.66 is: 98,177.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,729.30 : 176,271.87 = 71,140.66 : x
  2. Step 2: Convert to fraction form
    127,729.30/176,271.87 = 71,140.66/x
  3. Step 3: Cross multiply
    127,729.30x = 176,271.87 × 71,140.66
  4. Step 4: Simplify right side
    127,729.30x = 12,540,097,171.23
  5. Step 5: Solve for x
    x = 12,540,097,171.23/127,729.30
  6. Step 6: Final answer
    x = 98,177.14

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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.