Home / 121,976.20-182,877.90-47,067.40

Finding the Fourth Proportional to 121,976.20, 182,877.90 and 47,067.40

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Solution

The fourth proportional to 121,976.20, 182,877.90 and 47,067.40 is: 70,567.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,976.20 : 182,877.90 = 47,067.40 : x
  2. Step 2: Convert to fraction form
    121,976.20/182,877.90 = 47,067.40/x
  3. Step 3: Cross multiply
    121,976.20x = 182,877.90 × 47,067.40
  4. Step 4: Simplify right side
    121,976.20x = 8,607,587,270.46
  5. Step 5: Solve for x
    x = 8,607,587,270.46/121,976.20
  6. Step 6: Final answer
    x = 70,567.76

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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.