Home / 123,618.96-170,581.40-75,874.32

Finding the Fourth Proportional to 123,618.96, 170,581.40 and 75,874.32

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Solution

The fourth proportional to 123,618.96, 170,581.40 and 75,874.32 is: 104,698.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,618.96 : 170,581.40 = 75,874.32 : x
  2. Step 2: Convert to fraction form
    123,618.96/170,581.40 = 75,874.32/x
  3. Step 3: Cross multiply
    123,618.96x = 170,581.40 × 75,874.32
  4. Step 4: Simplify right side
    123,618.96x = 12,942,747,729.65
  5. Step 5: Solve for x
    x = 12,942,747,729.65/123,618.96
  6. Step 6: Final answer
    x = 104,698.73

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.