Home / 140,571.28-193,987.52-80,144.40

Finding the Fourth Proportional to 140,571.28, 193,987.52 and 80,144.40

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Solution

The fourth proportional to 140,571.28, 193,987.52 and 80,144.40 is: 110,598.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,571.28 : 193,987.52 = 80,144.40 : x
  2. Step 2: Convert to fraction form
    140,571.28/193,987.52 = 80,144.40/x
  3. Step 3: Cross multiply
    140,571.28x = 193,987.52 × 80,144.40
  4. Step 4: Simplify right side
    140,571.28x = 15,547,013,397.89
  5. Step 5: Solve for x
    x = 15,547,013,397.89/140,571.28
  6. Step 6: Final answer
    x = 110,598.79

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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.