Home / 99,241.20-148,497.30-72,997.20

Finding the Fourth Proportional to 99,241.20, 148,497.30 and 72,997.20

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Solution

The fourth proportional to 99,241.20, 148,497.30 and 72,997.20 is: 109,227.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,241.20 : 148,497.30 = 72,997.20 : x
  2. Step 2: Convert to fraction form
    99,241.20/148,497.30 = 72,997.20/x
  3. Step 3: Cross multiply
    99,241.20x = 148,497.30 × 72,997.20
  4. Step 4: Simplify right side
    99,241.20x = 10,839,887,107.56
  5. Step 5: Solve for x
    x = 10,839,887,107.56/99,241.20
  6. Step 6: Final answer
    x = 109,227.69

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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.