Home / 112,220.28-154,863.09-61,231.86

Finding the Fourth Proportional to 112,220.28, 154,863.09 and 61,231.86

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Solution

The fourth proportional to 112,220.28, 154,863.09 and 61,231.86 is: 84,499.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,220.28 : 154,863.09 = 61,231.86 : x
  2. Step 2: Convert to fraction form
    112,220.28/154,863.09 = 61,231.86/x
  3. Step 3: Cross multiply
    112,220.28x = 154,863.09 × 61,231.86
  4. Step 4: Simplify right side
    112,220.28x = 9,482,555,046.05
  5. Step 5: Solve for x
    x = 9,482,555,046.05/112,220.28
  6. Step 6: Final answer
    x = 84,499.48

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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.