Home / 68,998.28-103,569.80-61,151

Finding the Fourth Proportional to 68,998.28, 103,569.80 and 61,151

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Solution

The fourth proportional to 68,998.28, 103,569.80 and 61,151 is: 91,790.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,998.28 : 103,569.80 = 61,151 : x
  2. Step 2: Convert to fraction form
    68,998.28/103,569.80 = 61,151/x
  3. Step 3: Cross multiply
    68,998.28x = 103,569.80 × 61,151
  4. Step 4: Simplify right side
    68,998.28x = 6,333,396,839.80
  5. Step 5: Solve for x
    x = 6,333,396,839.80/68,998.28
  6. Step 6: Final answer
    x = 91,790.65

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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.