Home / 107,449.20-148,146.57-71,560.53

Finding the Fourth Proportional to 107,449.20, 148,146.57 and 71,560.53

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Solution

The fourth proportional to 107,449.20, 148,146.57 and 71,560.53 is: 98,664.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,449.20 : 148,146.57 = 71,560.53 : x
  2. Step 2: Convert to fraction form
    107,449.20/148,146.57 = 71,560.53/x
  3. Step 3: Cross multiply
    107,449.20x = 148,146.57 × 71,560.53
  4. Step 4: Simplify right side
    107,449.20x = 10,601,447,066.88
  5. Step 5: Solve for x
    x = 10,601,447,066.88/107,449.20
  6. Step 6: Final answer
    x = 98,664.74

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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.