Home / 143,214.62-214,920.56-49,720.38

Finding the Fourth Proportional to 143,214.62, 214,920.56 and 49,720.38

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Solution

The fourth proportional to 143,214.62, 214,920.56 and 49,720.38 is: 74,614.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,214.62 : 214,920.56 = 49,720.38 : x
  2. Step 2: Convert to fraction form
    143,214.62/214,920.56 = 49,720.38/x
  3. Step 3: Cross multiply
    143,214.62x = 214,920.56 × 49,720.38
  4. Step 4: Simplify right side
    143,214.62x = 10,685,931,913.01
  5. Step 5: Solve for x
    x = 10,685,931,913.01/143,214.62
  6. Step 6: Final answer
    x = 74,614.81

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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.