Home / 127,939.50-176,556.51-71,350.88

Finding the Fourth Proportional to 127,939.50, 176,556.51 and 71,350.88

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Solution

The fourth proportional to 127,939.50, 176,556.51 and 71,350.88 is: 98,464.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,939.50 : 176,556.51 = 71,350.88 : x
  2. Step 2: Convert to fraction form
    127,939.50/176,556.51 = 71,350.88/x
  3. Step 3: Cross multiply
    127,939.50x = 176,556.51 × 71,350.88
  4. Step 4: Simplify right side
    127,939.50x = 12,597,461,475.45
  5. Step 5: Solve for x
    x = 12,597,461,475.45/127,939.50
  6. Step 6: Final answer
    x = 98,464.21

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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.