Home / 127,806.12-176,372.10-74,122.29

Finding the Fourth Proportional to 127,806.12, 176,372.10 and 74,122.29

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Solution

The fourth proportional to 127,806.12, 176,372.10 and 74,122.29 is: 102,288.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,806.12 : 176,372.10 = 74,122.29 : x
  2. Step 2: Convert to fraction form
    127,806.12/176,372.10 = 74,122.29/x
  3. Step 3: Cross multiply
    127,806.12x = 176,372.10 × 74,122.29
  4. Step 4: Simplify right side
    127,806.12x = 13,073,103,944.11
  5. Step 5: Solve for x
    x = 13,073,103,944.11/127,806.12
  6. Step 6: Final answer
    x = 102,288.56

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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.