Home / 107,387.88-161,081.94-40,812.36

Finding the Fourth Proportional to 107,387.88, 161,081.94 and 40,812.36

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Solution

The fourth proportional to 107,387.88, 161,081.94 and 40,812.36 is: 61,218.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,387.88 : 161,081.94 = 40,812.36 : x
  2. Step 2: Convert to fraction form
    107,387.88/161,081.94 = 40,812.36/x
  3. Step 3: Cross multiply
    107,387.88x = 161,081.94 × 40,812.36
  4. Step 4: Simplify right side
    107,387.88x = 6,574,134,124.78
  5. Step 5: Solve for x
    x = 6,574,134,124.78/107,387.88
  6. Step 6: Final answer
    x = 61,218.59

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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.