Home / 126,131.11-174,812.29-123,769.15

Finding the Fourth Proportional to 126,131.11, 174,812.29 and 123,769.15

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Solution

The fourth proportional to 126,131.11, 174,812.29 and 123,769.15 is: 171,538.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,131.11 : 174,812.29 = 123,769.15 : x
  2. Step 2: Convert to fraction form
    126,131.11/174,812.29 = 123,769.15/x
  3. Step 3: Cross multiply
    126,131.11x = 174,812.29 × 123,769.15
  4. Step 4: Simplify right side
    126,131.11x = 21,636,367,796.40
  5. Step 5: Solve for x
    x = 21,636,367,796.40/126,131.11
  6. Step 6: Final answer
    x = 171,538.71

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.