Home / 143,119.14-215,707.43-123,367.03

Finding the Fourth Proportional to 143,119.14, 215,707.43 and 123,367.03

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Solution

The fourth proportional to 143,119.14, 215,707.43 and 123,367.03 is: 185,937.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,119.14 : 215,707.43 = 123,367.03 : x
  2. Step 2: Convert to fraction form
    143,119.14/215,707.43 = 123,367.03/x
  3. Step 3: Cross multiply
    143,119.14x = 215,707.43 × 123,367.03
  4. Step 4: Simplify right side
    143,119.14x = 26,611,184,371.20
  5. Step 5: Solve for x
    x = 26,611,184,371.20/143,119.14
  6. Step 6: Final answer
    x = 185,937.29

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.