Home / 225,962.03-338,942.91-85,720.66

Finding the Fourth Proportional to 225,962.03, 338,942.91 and 85,720.66

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Solution

The fourth proportional to 225,962.03, 338,942.91 and 85,720.66 is: 128,580.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    225,962.03 : 338,942.91 = 85,720.66 : x
  2. Step 2: Convert to fraction form
    225,962.03/338,942.91 = 85,720.66/x
  3. Step 3: Cross multiply
    225,962.03x = 338,942.91 × 85,720.66
  4. Step 4: Simplify right side
    225,962.03x = 29,054,409,947.52
  5. Step 5: Solve for x
    x = 29,054,409,947.52/225,962.03
  6. Step 6: Final answer
    x = 128,580.94

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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.