Home / 107,426.43-161,139.69-40,851.18

Finding the Fourth Proportional to 107,426.43, 161,139.69 and 40,851.18

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Solution

The fourth proportional to 107,426.43, 161,139.69 and 40,851.18 is: 61,276.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,426.43 : 161,139.69 = 40,851.18 : x
  2. Step 2: Convert to fraction form
    107,426.43/161,139.69 = 40,851.18/x
  3. Step 3: Cross multiply
    107,426.43x = 161,139.69 × 40,851.18
  4. Step 4: Simplify right side
    107,426.43x = 6,582,746,481.33
  5. Step 5: Solve for x
    x = 6,582,746,481.33/107,426.43
  6. Step 6: Final answer
    x = 61,276.79

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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.