Home / 140,647.48-194,091.55-80,219.15

Finding the Fourth Proportional to 140,647.48, 194,091.55 and 80,219.15

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Solution

The fourth proportional to 140,647.48, 194,091.55 and 80,219.15 is: 110,701.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,647.48 : 194,091.55 = 80,219.15 : x
  2. Step 2: Convert to fraction form
    140,647.48/194,091.55 = 80,219.15/x
  3. Step 3: Cross multiply
    140,647.48x = 194,091.55 × 80,219.15
  4. Step 4: Simplify right side
    140,647.48x = 15,569,859,163.18
  5. Step 5: Solve for x
    x = 15,569,859,163.18/140,647.48
  6. Step 6: Final answer
    x = 110,701.30

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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.