Home / 143,272.06-214,830.87-109,909.78

Finding the Fourth Proportional to 143,272.06, 214,830.87 and 109,909.78

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Solution

The fourth proportional to 143,272.06, 214,830.87 and 109,909.78 is: 164,805.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,272.06 : 214,830.87 = 109,909.78 : x
  2. Step 2: Convert to fraction form
    143,272.06/214,830.87 = 109,909.78/x
  3. Step 3: Cross multiply
    143,272.06x = 214,830.87 × 109,909.78
  4. Step 4: Simplify right side
    143,272.06x = 23,612,013,658.91
  5. Step 5: Solve for x
    x = 23,612,013,658.91/143,272.06
  6. Step 6: Final answer
    x = 164,805.43

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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.