Home / 125,514.29-173,166.42-80,218.78

Finding the Fourth Proportional to 125,514.29, 173,166.42 and 80,218.78

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Solution

The fourth proportional to 125,514.29, 173,166.42 and 80,218.78 is: 110,674.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,514.29 : 173,166.42 = 80,218.78 : x
  2. Step 2: Convert to fraction form
    125,514.29/173,166.42 = 80,218.78/x
  3. Step 3: Cross multiply
    125,514.29x = 173,166.42 × 80,218.78
  4. Step 4: Simplify right side
    125,514.29x = 13,891,199,340.10
  5. Step 5: Solve for x
    x = 13,891,199,340.10/125,514.29
  6. Step 6: Final answer
    x = 110,674.25

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.