Home / 123,618.38-185,236.74-83,480.08

Finding the Fourth Proportional to 123,618.38, 185,236.74 and 83,480.08

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Solution

The fourth proportional to 123,618.38, 185,236.74 and 83,480.08 is: 125,091.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,618.38 : 185,236.74 = 83,480.08 : x
  2. Step 2: Convert to fraction form
    123,618.38/185,236.74 = 83,480.08/x
  3. Step 3: Cross multiply
    123,618.38x = 185,236.74 × 83,480.08
  4. Step 4: Simplify right side
    123,618.38x = 15,463,577,874.14
  5. Step 5: Solve for x
    x = 15,463,577,874.14/123,618.38
  6. Step 6: Final answer
    x = 125,091.25

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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.