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Finding the Fourth Proportional to 143,527.57, 215,229.16 and 43,664.59

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Solution

The fourth proportional to 143,527.57, 215,229.16 and 43,664.59 is: 65,477.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,527.57 : 215,229.16 = 43,664.59 : x
  2. Step 2: Convert to fraction form
    143,527.57/215,229.16 = 43,664.59/x
  3. Step 3: Cross multiply
    143,527.57x = 215,229.16 × 43,664.59
  4. Step 4: Simplify right side
    143,527.57x = 9,397,894,017.80
  5. Step 5: Solve for x
    x = 9,397,894,017.80/143,527.57
  6. Step 6: Final answer
    x = 65,477.97

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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.