Home / 123,376.39-185,049.09-39,145.30

Finding the Fourth Proportional to 123,376.39, 185,049.09 and 39,145.30

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Solution

The fourth proportional to 123,376.39, 185,049.09 and 39,145.30 is: 58,713.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,376.39 : 185,049.09 = 39,145.30 : x
  2. Step 2: Convert to fraction form
    123,376.39/185,049.09 = 39,145.30/x
  3. Step 3: Cross multiply
    123,376.39x = 185,049.09 × 39,145.30
  4. Step 4: Simplify right side
    123,376.39x = 7,243,801,680.15
  5. Step 5: Solve for x
    x = 7,243,801,680.15/123,376.39
  6. Step 6: Final answer
    x = 58,713.03

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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.