Home / 112,077.54-154,454.30-80,190.90

Finding the Fourth Proportional to 112,077.54, 154,454.30 and 80,190.90

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Solution

The fourth proportional to 112,077.54, 154,454.30 and 80,190.90 is: 110,511.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,077.54 : 154,454.30 = 80,190.90 : x
  2. Step 2: Convert to fraction form
    112,077.54/154,454.30 = 80,190.90/x
  3. Step 3: Cross multiply
    112,077.54x = 154,454.30 × 80,190.90
  4. Step 4: Simplify right side
    112,077.54x = 12,385,829,325.87
  5. Step 5: Solve for x
    x = 12,385,829,325.87/112,077.54
  6. Step 6: Final answer
    x = 110,511.25

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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.