Home / 143,397.72-215,096.10-36,781.56

Finding the Fourth Proportional to 143,397.72, 215,096.10 and 36,781.56

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Solution

The fourth proportional to 143,397.72, 215,096.10 and 36,781.56 is: 55,172.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,397.72 : 215,096.10 = 36,781.56 : x
  2. Step 2: Convert to fraction form
    143,397.72/215,096.10 = 36,781.56/x
  3. Step 3: Cross multiply
    143,397.72x = 215,096.10 × 36,781.56
  4. Step 4: Simplify right side
    143,397.72x = 7,911,570,107.92
  5. Step 5: Solve for x
    x = 7,911,570,107.92/143,397.72
  6. Step 6: Final answer
    x = 55,172.22

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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.