Home / 112,081.60-154,671.84-61,780.48

Finding the Fourth Proportional to 112,081.60, 154,671.84 and 61,780.48

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Solution

The fourth proportional to 112,081.60, 154,671.84 and 61,780.48 is: 85,256.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,081.60 : 154,671.84 = 61,780.48 : x
  2. Step 2: Convert to fraction form
    112,081.60/154,671.84 = 61,780.48/x
  3. Step 3: Cross multiply
    112,081.60x = 154,671.84 × 61,780.48
  4. Step 4: Simplify right side
    112,081.60x = 9,555,700,517.68
  5. Step 5: Solve for x
    x = 9,555,700,517.68/112,081.60
  6. Step 6: Final answer
    x = 85,256.64

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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.