Home / 112,864.12-169,351.68-45,393.48

Finding the Fourth Proportional to 112,864.12, 169,351.68 and 45,393.48

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Solution

The fourth proportional to 112,864.12, 169,351.68 and 45,393.48 is: 68,112.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,864.12 : 169,351.68 = 45,393.48 : x
  2. Step 2: Convert to fraction form
    112,864.12/169,351.68 = 45,393.48/x
  3. Step 3: Cross multiply
    112,864.12x = 169,351.68 × 45,393.48
  4. Step 4: Simplify right side
    112,864.12x = 7,687,462,099.05
  5. Step 5: Solve for x
    x = 7,687,462,099.05/112,864.12
  6. Step 6: Final answer
    x = 68,112.54

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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.