Home / 112,767.87-155,612.97-61,770.42

Finding the Fourth Proportional to 112,767.87, 155,612.97 and 61,770.42

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Solution

The fourth proportional to 112,767.87, 155,612.97 and 61,770.42 is: 85,239.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,767.87 : 155,612.97 = 61,770.42 : x
  2. Step 2: Convert to fraction form
    112,767.87/155,612.97 = 61,770.42/x
  3. Step 3: Cross multiply
    112,767.87x = 155,612.97 × 61,770.42
  4. Step 4: Simplify right side
    112,767.87x = 9,612,278,514.35
  5. Step 5: Solve for x
    x = 9,612,278,514.35/112,767.87
  6. Step 6: Final answer
    x = 85,239.51

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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.