Home / 105,853.65-146,078.28-58,107.12

Finding the Fourth Proportional to 105,853.65, 146,078.28 and 58,107.12

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Solution

The fourth proportional to 105,853.65, 146,078.28 and 58,107.12 is: 80,187.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,853.65 : 146,078.28 = 58,107.12 : x
  2. Step 2: Convert to fraction form
    105,853.65/146,078.28 = 58,107.12/x
  3. Step 3: Cross multiply
    105,853.65x = 146,078.28 × 58,107.12
  4. Step 4: Simplify right side
    105,853.65x = 8,488,188,145.35
  5. Step 5: Solve for x
    x = 8,488,188,145.35/105,853.65
  6. Step 6: Final answer
    x = 80,187.96

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1.5x scale

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.