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Finding the Fourth Proportional to 143,020.66, 214,565.67 and 43,174.89

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Solution

The fourth proportional to 143,020.66, 214,565.67 and 43,174.89 is: 64,772.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,020.66 : 214,565.67 = 43,174.89 : x
  2. Step 2: Convert to fraction form
    143,020.66/214,565.67 = 43,174.89/x
  3. Step 3: Cross multiply
    143,020.66x = 214,565.67 × 43,174.89
  4. Step 4: Simplify right side
    143,020.66x = 9,263,849,200.03
  5. Step 5: Solve for x
    x = 9,263,849,200.03/143,020.66
  6. Step 6: Final answer
    x = 64,772.81

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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.