Home / 105,861.92-146,080.24-58,115.20

Finding the Fourth Proportional to 105,861.92, 146,080.24 and 58,115.20

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Solution

The fourth proportional to 105,861.92, 146,080.24 and 58,115.20 is: 80,193.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,861.92 : 146,080.24 = 58,115.20 : x
  2. Step 2: Convert to fraction form
    105,861.92/146,080.24 = 58,115.20/x
  3. Step 3: Cross multiply
    105,861.92x = 146,080.24 × 58,115.20
  4. Step 4: Simplify right side
    105,861.92x = 8,489,482,363.65
  5. Step 5: Solve for x
    x = 8,489,482,363.65/105,861.92
  6. Step 6: Final answer
    x = 80,193.92

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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.