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Finding the Fourth Proportional to 101,266.20, 151,930.08 and 71,741.16

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Solution

The fourth proportional to 101,266.20, 151,930.08 and 71,741.16 is: 107,633.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,266.20 : 151,930.08 = 71,741.16 : x
  2. Step 2: Convert to fraction form
    101,266.20/151,930.08 = 71,741.16/x
  3. Step 3: Cross multiply
    101,266.20x = 151,930.08 × 71,741.16
  4. Step 4: Simplify right side
    101,266.20x = 10,899,640,178.09
  5. Step 5: Solve for x
    x = 10,899,640,178.09/101,266.20
  6. Step 6: Final answer
    x = 107,633.55

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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.