Home / 121,514.80-182,272.20-68,370.70

Finding the Fourth Proportional to 121,514.80, 182,272.20 and 68,370.70

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Solution

The fourth proportional to 121,514.80, 182,272.20 and 68,370.70 is: 102,556.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,514.80 : 182,272.20 = 68,370.70 : x
  2. Step 2: Convert to fraction form
    121,514.80/182,272.20 = 68,370.70/x
  3. Step 3: Cross multiply
    121,514.80x = 182,272.20 × 68,370.70
  4. Step 4: Simplify right side
    121,514.80x = 12,462,077,904.54
  5. Step 5: Solve for x
    x = 12,462,077,904.54/121,514.80
  6. Step 6: Final answer
    x = 102,556.05

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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.