Home / 83,938.88-115,689.62-73,116.27

Finding the Fourth Proportional to 83,938.88, 115,689.62 and 73,116.27

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Solution

The fourth proportional to 83,938.88, 115,689.62 and 73,116.27 is: 100,773.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,938.88 : 115,689.62 = 73,116.27 : x
  2. Step 2: Convert to fraction form
    83,938.88/115,689.62 = 73,116.27/x
  3. Step 3: Cross multiply
    83,938.88x = 115,689.62 × 73,116.27
  4. Step 4: Simplify right side
    83,938.88x = 8,458,793,263.63
  5. Step 5: Solve for x
    x = 8,458,793,263.63/83,938.88
  6. Step 6: Final answer
    x = 100,773.24

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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.