Home / 119,619.43-165,078.55-68,641.48

Finding the Fourth Proportional to 119,619.43, 165,078.55 and 68,641.48

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Solution

The fourth proportional to 119,619.43, 165,078.55 and 68,641.48 is: 94,727.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,619.43 : 165,078.55 = 68,641.48 : x
  2. Step 2: Convert to fraction form
    119,619.43/165,078.55 = 68,641.48/x
  3. Step 3: Cross multiply
    119,619.43x = 165,078.55 × 68,641.48
  4. Step 4: Simplify right side
    119,619.43x = 11,331,236,131.03
  5. Step 5: Solve for x
    x = 11,331,236,131.03/119,619.43
  6. Step 6: Final answer
    x = 94,727.39

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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.