Home / 121,217.28-181,854.51-38,111.28

Finding the Fourth Proportional to 121,217.28, 181,854.51 and 38,111.28

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Solution

The fourth proportional to 121,217.28, 181,854.51 and 38,111.28 is: 57,175.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,217.28 : 181,854.51 = 38,111.28 : x
  2. Step 2: Convert to fraction form
    121,217.28/181,854.51 = 38,111.28/x
  3. Step 3: Cross multiply
    121,217.28x = 181,854.51 × 38,111.28
  4. Step 4: Simplify right side
    121,217.28x = 6,930,708,149.87
  5. Step 5: Solve for x
    x = 6,930,708,149.87/121,217.28
  6. Step 6: Final answer
    x = 57,175.91

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.