Home / 225,949.64-338,937.42-85,705.16

Finding the Fourth Proportional to 225,949.64, 338,937.42 and 85,705.16

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Solution

The fourth proportional to 225,949.64, 338,937.42 and 85,705.16 is: 128,562.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    225,949.64 : 338,937.42 = 85,705.16 : x
  2. Step 2: Convert to fraction form
    225,949.64/338,937.42 = 85,705.16/x
  3. Step 3: Cross multiply
    225,949.64x = 338,937.42 × 85,705.16
  4. Step 4: Simplify right side
    225,949.64x = 29,048,685,811.09
  5. Step 5: Solve for x
    x = 29,048,685,811.09/225,949.64
  6. Step 6: Final answer
    x = 128,562.66

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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.