Home / 102,683.82-141,689.66-57,356.04

Finding the Fourth Proportional to 102,683.82, 141,689.66 and 57,356.04

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Solution

The fourth proportional to 102,683.82, 141,689.66 and 57,356.04 is: 79,143.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,683.82 : 141,689.66 = 57,356.04 : x
  2. Step 2: Convert to fraction form
    102,683.82/141,689.66 = 57,356.04/x
  3. Step 3: Cross multiply
    102,683.82x = 141,689.66 × 57,356.04
  4. Step 4: Simplify right side
    102,683.82x = 8,126,757,806.55
  5. Step 5: Solve for x
    x = 8,126,757,806.55/102,683.82
  6. Step 6: Final answer
    x = 79,143.51

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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.