Home / 127,769.12-176,326.84-71,180.48

Finding the Fourth Proportional to 127,769.12, 176,326.84 and 71,180.48

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Solution

The fourth proportional to 127,769.12, 176,326.84 and 71,180.48 is: 98,232.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,769.12 : 176,326.84 = 71,180.48 : x
  2. Step 2: Convert to fraction form
    127,769.12/176,326.84 = 71,180.48/x
  3. Step 3: Cross multiply
    127,769.12x = 176,326.84 × 71,180.48
  4. Step 4: Simplify right side
    127,769.12x = 12,551,029,108.08
  5. Step 5: Solve for x
    x = 12,551,029,108.08/127,769.12
  6. Step 6: Final answer
    x = 98,232.10

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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.