Home / 99,392-148,997.28-90,734.72

Finding the Fourth Proportional to 99,392, 148,997.28 and 90,734.72

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Solution

The fourth proportional to 99,392, 148,997.28 and 90,734.72 is: 136,019.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,392 : 148,997.28 = 90,734.72 : x
  2. Step 2: Convert to fraction form
    99,392/148,997.28 = 90,734.72/x
  3. Step 3: Cross multiply
    99,392x = 148,997.28 × 90,734.72
  4. Step 4: Simplify right side
    99,392x = 13,519,226,481.56
  5. Step 5: Solve for x
    x = 13,519,226,481.56/99,392
  6. Step 6: Final answer
    x = 136,019.26

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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.