Home / 121,217.33-181,741.46-53,712.65

Finding the Fourth Proportional to 121,217.33, 181,741.46 and 53,712.65

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Solution

The fourth proportional to 121,217.33, 181,741.46 and 53,712.65 is: 80,531.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,217.33 : 181,741.46 = 53,712.65 : x
  2. Step 2: Convert to fraction form
    121,217.33/181,741.46 = 53,712.65/x
  3. Step 3: Cross multiply
    121,217.33x = 181,741.46 × 53,712.65
  4. Step 4: Simplify right side
    121,217.33x = 9,761,814,254.20
  5. Step 5: Solve for x
    x = 9,761,814,254.20/121,217.33
  6. Step 6: Final answer
    x = 80,531.51

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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.