Home / 127,863.15-176,489.85-74,161.36

Finding the Fourth Proportional to 127,863.15, 176,489.85 and 74,161.36

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Solution

The fourth proportional to 127,863.15, 176,489.85 and 74,161.36 is: 102,365.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,863.15 : 176,489.85 = 74,161.36 : x
  2. Step 2: Convert to fraction form
    127,863.15/176,489.85 = 74,161.36/x
  3. Step 3: Cross multiply
    127,863.15x = 176,489.85 × 74,161.36
  4. Step 4: Simplify right side
    127,863.15x = 13,088,727,302.20
  5. Step 5: Solve for x
    x = 13,088,727,302.20/127,863.15
  6. Step 6: Final answer
    x = 102,365.12

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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.