Home / 102,709.93-141,725.61-57,382.29

Finding the Fourth Proportional to 102,709.93, 141,725.61 and 57,382.29

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Solution

The fourth proportional to 102,709.93, 141,725.61 and 57,382.29 is: 79,179.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,709.93 : 141,725.61 = 57,382.29 : x
  2. Step 2: Convert to fraction form
    102,709.93/141,725.61 = 57,382.29/x
  3. Step 3: Cross multiply
    102,709.93x = 141,725.61 × 57,382.29
  4. Step 4: Simplify right side
    102,709.93x = 8,132,540,053.45
  5. Step 5: Solve for x
    x = 8,132,540,053.45/102,709.93
  6. Step 6: Final answer
    x = 79,179.69

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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.