Home / 143,621.26-215,464.20-43,791.55

Finding the Fourth Proportional to 143,621.26, 215,464.20 and 43,791.55

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Solution

The fourth proportional to 143,621.26, 215,464.20 and 43,791.55 is: 65,697.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,621.26 : 215,464.20 = 43,791.55 : x
  2. Step 2: Convert to fraction form
    143,621.26/215,464.20 = 43,791.55/x
  3. Step 3: Cross multiply
    143,621.26x = 215,464.20 × 43,791.55
  4. Step 4: Simplify right side
    143,621.26x = 9,435,510,666.74
  5. Step 5: Solve for x
    x = 9,435,510,666.74/143,621.26
  6. Step 6: Final answer
    x = 65,697.17

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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.