Home / 140,776.97-194,275.35-80,346.40

Finding the Fourth Proportional to 140,776.97, 194,275.35 and 80,346.40

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Solution

The fourth proportional to 140,776.97, 194,275.35 and 80,346.40 is: 110,879.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,776.97 : 194,275.35 = 80,346.40 : x
  2. Step 2: Convert to fraction form
    140,776.97/194,275.35 = 80,346.40/x
  3. Step 3: Cross multiply
    140,776.97x = 194,275.35 × 80,346.40
  4. Step 4: Simplify right side
    140,776.97x = 15,609,324,981.24
  5. Step 5: Solve for x
    x = 15,609,324,981.24/140,776.97
  6. Step 6: Final answer
    x = 110,879.82

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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.