Home / 121,811.16-182,677.86-38,685.72

Finding the Fourth Proportional to 121,811.16, 182,677.86 and 38,685.72

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Solution

The fourth proportional to 121,811.16, 182,677.86 and 38,685.72 is: 58,016.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,811.16 : 182,677.86 = 38,685.72 : x
  2. Step 2: Convert to fraction form
    121,811.16/182,677.86 = 38,685.72/x
  3. Step 3: Cross multiply
    121,811.16x = 182,677.86 × 38,685.72
  4. Step 4: Simplify right side
    121,811.16x = 7,067,024,542.16
  5. Step 5: Solve for x
    x = 7,067,024,542.16/121,811.16
  6. Step 6: Final answer
    x = 58,016.23

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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.