Home / 143,930.16-214,448.13-135,882

Finding the Fourth Proportional to 143,930.16, 214,448.13 and 135,882

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Solution

The fourth proportional to 143,930.16, 214,448.13 and 135,882 is: 202,456.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,930.16 : 214,448.13 = 135,882 : x
  2. Step 2: Convert to fraction form
    143,930.16/214,448.13 = 135,882/x
  3. Step 3: Cross multiply
    143,930.16x = 214,448.13 × 135,882
  4. Step 4: Simplify right side
    143,930.16x = 29,139,640,800.66
  5. Step 5: Solve for x
    x = 29,139,640,800.66/143,930.16
  6. Step 6: Final answer
    x = 202,456.81

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.