Home / 112,559.78-168,839.96-45,999.90

Finding the Fourth Proportional to 112,559.78, 168,839.96 and 45,999.90

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Solution

The fourth proportional to 112,559.78, 168,839.96 and 45,999.90 is: 68,999.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,559.78 : 168,839.96 = 45,999.90 : x
  2. Step 2: Convert to fraction form
    112,559.78/168,839.96 = 45,999.90/x
  3. Step 3: Cross multiply
    112,559.78x = 168,839.96 × 45,999.90
  4. Step 4: Simplify right side
    112,559.78x = 7,766,621,046.00
  5. Step 5: Solve for x
    x = 7,766,621,046.00/112,559.78
  6. Step 6: Final answer
    x = 68,999.96

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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.