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Finding the Fourth Proportional to 135,229.59, 201,962.12 and 115,023.74

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Solution

The fourth proportional to 135,229.59, 201,962.12 and 115,023.74 is: 171,785.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,229.59 : 201,962.12 = 115,023.74 : x
  2. Step 2: Convert to fraction form
    135,229.59/201,962.12 = 115,023.74/x
  3. Step 3: Cross multiply
    135,229.59x = 201,962.12 × 115,023.74
  4. Step 4: Simplify right side
    135,229.59x = 23,230,436,795.80
  5. Step 5: Solve for x
    x = 23,230,436,795.80/135,229.59
  6. Step 6: Final answer
    x = 171,785.16

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.