Home / 91,613.64-138,044.51-75,338.22

Finding the Fourth Proportional to 91,613.64, 138,044.51 and 75,338.22

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Solution

The fourth proportional to 91,613.64, 138,044.51 and 75,338.22 is: 113,520.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,613.64 : 138,044.51 = 75,338.22 : x
  2. Step 2: Convert to fraction form
    91,613.64/138,044.51 = 75,338.22/x
  3. Step 3: Cross multiply
    91,613.64x = 138,044.51 × 75,338.22
  4. Step 4: Simplify right side
    91,613.64x = 10,400,027,287.48
  5. Step 5: Solve for x
    x = 10,400,027,287.48/91,613.64
  6. Step 6: Final answer
    x = 113,520.51

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.