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Finding the Fourth Proportional to 143,532, 213,781.82 and 136,037.88

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Solution

The fourth proportional to 143,532, 213,781.82 and 136,037.88 is: 202,619.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,532 : 213,781.82 = 136,037.88 : x
  2. Step 2: Convert to fraction form
    143,532/213,781.82 = 136,037.88/x
  3. Step 3: Cross multiply
    143,532x = 213,781.82 × 136,037.88
  4. Step 4: Simplify right side
    143,532x = 29,082,424,895.15
  5. Step 5: Solve for x
    x = 29,082,424,895.15/143,532
  6. Step 6: Final answer
    x = 202,619.80

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.