Home / 143,421.03-215,229.56-49,926.78

Finding the Fourth Proportional to 143,421.03, 215,229.56 and 49,926.78

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Solution

The fourth proportional to 143,421.03, 215,229.56 and 49,926.78 is: 74,924.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,421.03 : 215,229.56 = 49,926.78 : x
  2. Step 2: Convert to fraction form
    143,421.03/215,229.56 = 49,926.78/x
  3. Step 3: Cross multiply
    143,421.03x = 215,229.56 × 49,926.78
  4. Step 4: Simplify right side
    143,421.03x = 10,745,718,641.98
  5. Step 5: Solve for x
    x = 10,745,718,641.98/143,421.03
  6. Step 6: Final answer
    x = 74,924.29

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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.