Home / 105,854.15-146,078.97-58,107.62

Finding the Fourth Proportional to 105,854.15, 146,078.97 and 58,107.62

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Solution

The fourth proportional to 105,854.15, 146,078.97 and 58,107.62 is: 80,188.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,854.15 : 146,078.97 = 58,107.62 : x
  2. Step 2: Convert to fraction form
    105,854.15/146,078.97 = 58,107.62/x
  3. Step 3: Cross multiply
    105,854.15x = 146,078.97 × 58,107.62
  4. Step 4: Simplify right side
    105,854.15x = 8,488,301,278.75
  5. Step 5: Solve for x
    x = 8,488,301,278.75/105,854.15
  6. Step 6: Final answer
    x = 80,188.65

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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.