Home / 143,001.39-197,341.94-79,339.04

Finding the Fourth Proportional to 143,001.39, 197,341.94 and 79,339.04

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Solution

The fourth proportional to 143,001.39, 197,341.94 and 79,339.04 is: 109,487.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,001.39 : 197,341.94 = 79,339.04 : x
  2. Step 2: Convert to fraction form
    143,001.39/197,341.94 = 79,339.04/x
  3. Step 3: Cross multiply
    143,001.39x = 197,341.94 × 79,339.04
  4. Step 4: Simplify right side
    143,001.39x = 15,656,919,282.98
  5. Step 5: Solve for x
    x = 15,656,919,282.98/143,001.39
  6. Step 6: Final answer
    x = 109,487.88

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.