Home / 112,257.89-168,287.81-45,753.65

Finding the Fourth Proportional to 112,257.89, 168,287.81 and 45,753.65

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Solution

The fourth proportional to 112,257.89, 168,287.81 and 45,753.65 is: 68,590.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,257.89 : 168,287.81 = 45,753.65 : x
  2. Step 2: Convert to fraction form
    112,257.89/168,287.81 = 45,753.65/x
  3. Step 3: Cross multiply
    112,257.89x = 168,287.81 × 45,753.65
  4. Step 4: Simplify right side
    112,257.89x = 7,699,781,118.88
  5. Step 5: Solve for x
    x = 7,699,781,118.88/112,257.89
  6. Step 6: Final answer
    x = 68,590.11

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.