Home / 127,939.03-176,498.79-74,192.90

Finding the Fourth Proportional to 127,939.03, 176,498.79 and 74,192.90

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Solution

The fourth proportional to 127,939.03, 176,498.79 and 74,192.90 is: 102,353.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,939.03 : 176,498.79 = 74,192.90 : x
  2. Step 2: Convert to fraction form
    127,939.03/176,498.79 = 74,192.90/x
  3. Step 3: Cross multiply
    127,939.03x = 176,498.79 × 74,192.90
  4. Step 4: Simplify right side
    127,939.03x = 13,094,957,076.59
  5. Step 5: Solve for x
    x = 13,094,957,076.59/127,939.03
  6. Step 6: Final answer
    x = 102,353.11

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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.