Home / 102,706.29-141,721.82-57,382.54

Finding the Fourth Proportional to 102,706.29, 141,721.82 and 57,382.54

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Solution

The fourth proportional to 102,706.29, 141,721.82 and 57,382.54 is: 79,180.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,706.29 : 141,721.82 = 57,382.54 : x
  2. Step 2: Convert to fraction form
    102,706.29/141,721.82 = 57,382.54/x
  3. Step 3: Cross multiply
    102,706.29x = 141,721.82 × 57,382.54
  4. Step 4: Simplify right side
    102,706.29x = 8,132,358,005.02
  5. Step 5: Solve for x
    x = 8,132,358,005.02/102,706.29
  6. Step 6: Final answer
    x = 79,180.72

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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.