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Finding the Fourth Proportional to 100,452.96, 138,626.24 and 62,749.12

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Solution

The fourth proportional to 100,452.96, 138,626.24 and 62,749.12 is: 86,594.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,452.96 : 138,626.24 = 62,749.12 : x
  2. Step 2: Convert to fraction form
    100,452.96/138,626.24 = 62,749.12/x
  3. Step 3: Cross multiply
    100,452.96x = 138,626.24 × 62,749.12
  4. Step 4: Simplify right side
    100,452.96x = 8,698,674,568.91
  5. Step 5: Solve for x
    x = 8,698,674,568.91/100,452.96
  6. Step 6: Final answer
    x = 86,594.51

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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.