Home / 99,821.08-149,690.04-40,616.56

Finding the Fourth Proportional to 99,821.08, 149,690.04 and 40,616.56

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Solution

The fourth proportional to 99,821.08, 149,690.04 and 40,616.56 is: 60,907.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,821.08 : 149,690.04 = 40,616.56 : x
  2. Step 2: Convert to fraction form
    99,821.08/149,690.04 = 40,616.56/x
  3. Step 3: Cross multiply
    99,821.08x = 149,690.04 × 40,616.56
  4. Step 4: Simplify right side
    99,821.08x = 6,079,894,491.06
  5. Step 5: Solve for x
    x = 6,079,894,491.06/99,821.08
  6. Step 6: Final answer
    x = 60,907.92

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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.