Home / 140,806.64-194,318.52-80,387.12

Finding the Fourth Proportional to 140,806.64, 194,318.52 and 80,387.12

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Solution

The fourth proportional to 140,806.64, 194,318.52 and 80,387.12 is: 110,937.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,806.64 : 194,318.52 = 80,387.12 : x
  2. Step 2: Convert to fraction form
    140,806.64/194,318.52 = 80,387.12/x
  3. Step 3: Cross multiply
    140,806.64x = 194,318.52 × 80,387.12
  4. Step 4: Simplify right side
    140,806.64x = 15,620,706,185.46
  5. Step 5: Solve for x
    x = 15,620,706,185.46/140,806.64
  6. Step 6: Final answer
    x = 110,937.28

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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.