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Finding the Fourth Proportional to 135,752.64, 187,338.08 and 82,760.64

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Solution

The fourth proportional to 135,752.64, 187,338.08 and 82,760.64 is: 114,209.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,752.64 : 187,338.08 = 82,760.64 : x
  2. Step 2: Convert to fraction form
    135,752.64/187,338.08 = 82,760.64/x
  3. Step 3: Cross multiply
    135,752.64x = 187,338.08 × 82,760.64
  4. Step 4: Simplify right side
    135,752.64x = 15,504,219,397.17
  5. Step 5: Solve for x
    x = 15,504,219,397.17/135,752.64
  6. Step 6: Final answer
    x = 114,209.34

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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.