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Finding the Fourth Proportional to 143,803.08, 215,614.44 and 43,930.08

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Solution

The fourth proportional to 143,803.08, 215,614.44 and 43,930.08 is: 65,867.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,803.08 : 215,614.44 = 43,930.08 : x
  2. Step 2: Convert to fraction form
    143,803.08/215,614.44 = 43,930.08/x
  3. Step 3: Cross multiply
    143,803.08x = 215,614.44 × 43,930.08
  4. Step 4: Simplify right side
    143,803.08x = 9,471,959,598.36
  5. Step 5: Solve for x
    x = 9,471,959,598.36/143,803.08
  6. Step 6: Final answer
    x = 65,867.57

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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.