Home / 140,204.98-193,499.85-79,790.32

Finding the Fourth Proportional to 140,204.98, 193,499.85 and 79,790.32

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Solution

The fourth proportional to 140,204.98, 193,499.85 and 79,790.32 is: 110,120.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,204.98 : 193,499.85 = 79,790.32 : x
  2. Step 2: Convert to fraction form
    140,204.98/193,499.85 = 79,790.32/x
  3. Step 3: Cross multiply
    140,204.98x = 193,499.85 × 79,790.32
  4. Step 4: Simplify right side
    140,204.98x = 15,439,414,951.45
  5. Step 5: Solve for x
    x = 15,439,414,951.45/140,204.98
  6. Step 6: Final answer
    x = 110,120.30

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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.