Home / 121,322.12-181,034.15-108,713.66

Finding the Fourth Proportional to 121,322.12, 181,034.15 and 108,713.66

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Solution

The fourth proportional to 121,322.12, 181,034.15 and 108,713.66 is: 162,220.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,322.12 : 181,034.15 = 108,713.66 : x
  2. Step 2: Convert to fraction form
    121,322.12/181,034.15 = 108,713.66/x
  3. Step 3: Cross multiply
    121,322.12x = 181,034.15 × 108,713.66
  4. Step 4: Simplify right side
    121,322.12x = 19,680,883,582.75
  5. Step 5: Solve for x
    x = 19,680,883,582.75/121,322.12
  6. Step 6: Final answer
    x = 162,220.08

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.