Home / 104,877.68-144,732.78-57,131

Finding the Fourth Proportional to 104,877.68, 144,732.78 and 57,131

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Solution

The fourth proportional to 104,877.68, 144,732.78 and 57,131 is: 78,841.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,877.68 : 144,732.78 = 57,131 : x
  2. Step 2: Convert to fraction form
    104,877.68/144,732.78 = 57,131/x
  3. Step 3: Cross multiply
    104,877.68x = 144,732.78 × 57,131
  4. Step 4: Simplify right side
    104,877.68x = 8,268,728,454.18
  5. Step 5: Solve for x
    x = 8,268,728,454.18/104,877.68
  6. Step 6: Final answer
    x = 78,841.64

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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.