Home / 112,235.31-154,671.03-80,348.85

Finding the Fourth Proportional to 112,235.31, 154,671.03 and 80,348.85

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Solution

The fourth proportional to 112,235.31, 154,671.03 and 80,348.85 is: 110,728.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,235.31 : 154,671.03 = 80,348.85 : x
  2. Step 2: Convert to fraction form
    112,235.31/154,671.03 = 80,348.85/x
  3. Step 3: Cross multiply
    112,235.31x = 154,671.03 × 80,348.85
  4. Step 4: Simplify right side
    112,235.31x = 12,427,639,388.82
  5. Step 5: Solve for x
    x = 12,427,639,388.82/112,235.31
  6. Step 6: Final answer
    x = 110,728.43

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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.