Home / 217,039.28-299,460.11-125,186.65

Finding the Fourth Proportional to 217,039.28, 299,460.11 and 125,186.65

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Solution

The fourth proportional to 217,039.28, 299,460.11 and 125,186.65 is: 172,726.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,039.28 : 299,460.11 = 125,186.65 : x
  2. Step 2: Convert to fraction form
    217,039.28/299,460.11 = 125,186.65/x
  3. Step 3: Cross multiply
    217,039.28x = 299,460.11 × 125,186.65
  4. Step 4: Simplify right side
    217,039.28x = 37,488,406,604.95
  5. Step 5: Solve for x
    x = 37,488,406,604.95/217,039.28
  6. Step 6: Final answer
    x = 172,726.37

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1.5x scale

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.