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Finding the Fourth Proportional to 143,027.67, 214,576.88 and 100,990.11

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Solution

The fourth proportional to 143,027.67, 214,576.88 and 100,990.11 is: 151,510.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,027.67 : 214,576.88 = 100,990.11 : x
  2. Step 2: Convert to fraction form
    143,027.67/214,576.88 = 100,990.11/x
  3. Step 3: Cross multiply
    143,027.67x = 214,576.88 × 100,990.11
  4. Step 4: Simplify right side
    143,027.67x = 21,670,142,209.71
  5. Step 5: Solve for x
    x = 21,670,142,209.71/143,027.67
  6. Step 6: Final answer
    x = 151,510.14

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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.