Home / 103,195.96-142,278.59-66,833.15

Finding the Fourth Proportional to 103,195.96, 142,278.59 and 66,833.15

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Solution

The fourth proportional to 103,195.96, 142,278.59 and 66,833.15 is: 92,144.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,195.96 : 142,278.59 = 66,833.15 : x
  2. Step 2: Convert to fraction form
    103,195.96/142,278.59 = 66,833.15/x
  3. Step 3: Cross multiply
    103,195.96x = 142,278.59 × 66,833.15
  4. Step 4: Simplify right side
    103,195.96x = 9,508,926,227.33
  5. Step 5: Solve for x
    x = 9,508,926,227.33/103,195.96
  6. Step 6: Final answer
    x = 92,144.37

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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.