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Finding the Fourth Proportional to 135,801.56, 204,034.44 and 128,248.16

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Solution

The fourth proportional to 135,801.56, 204,034.44 and 128,248.16 is: 192,685.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,801.56 : 204,034.44 = 128,248.16 : x
  2. Step 2: Convert to fraction form
    135,801.56/204,034.44 = 128,248.16/x
  3. Step 3: Cross multiply
    135,801.56x = 204,034.44 × 128,248.16
  4. Step 4: Simplify right side
    135,801.56x = 26,167,041,506.63
  5. Step 5: Solve for x
    x = 26,167,041,506.63/135,801.56
  6. Step 6: Final answer
    x = 192,685.87

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.