Home / 104,878.19-144,734.13-57,131.43

Finding the Fourth Proportional to 104,878.19, 144,734.13 and 57,131.43

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Solution

The fourth proportional to 104,878.19, 144,734.13 and 57,131.43 is: 78,842.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,878.19 : 144,734.13 = 57,131.43 : x
  2. Step 2: Convert to fraction form
    104,878.19/144,734.13 = 57,131.43/x
  3. Step 3: Cross multiply
    104,878.19x = 144,734.13 × 57,131.43
  4. Step 4: Simplify right side
    104,878.19x = 8,268,867,816.71
  5. Step 5: Solve for x
    x = 8,268,867,816.71/104,878.19
  6. Step 6: Final answer
    x = 78,842.59

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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.