Home / 143,320.84-197,773.62-79,654.76

Finding the Fourth Proportional to 143,320.84, 197,773.62 and 79,654.76

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Solution

The fourth proportional to 143,320.84, 197,773.62 and 79,654.76 is: 109,918.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,320.84 : 197,773.62 = 79,654.76 : x
  2. Step 2: Convert to fraction form
    143,320.84/197,773.62 = 79,654.76/x
  3. Step 3: Cross multiply
    143,320.84x = 197,773.62 × 79,654.76
  4. Step 4: Simplify right side
    143,320.84x = 15,753,610,235.43
  5. Step 5: Solve for x
    x = 15,753,610,235.43/143,320.84
  6. Step 6: Final answer
    x = 109,918.49

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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.