Home / 99,631.82-149,343.93-43,456.85

Finding the Fourth Proportional to 99,631.82, 149,343.93 and 43,456.85

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Solution

The fourth proportional to 99,631.82, 149,343.93 and 43,456.85 is: 65,139.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,631.82 : 149,343.93 = 43,456.85 : x
  2. Step 2: Convert to fraction form
    99,631.82/149,343.93 = 43,456.85/x
  3. Step 3: Cross multiply
    99,631.82x = 149,343.93 × 43,456.85
  4. Step 4: Simplify right side
    99,631.82x = 6,490,015,909.06
  5. Step 5: Solve for x
    x = 6,490,015,909.06/99,631.82
  6. Step 6: Final answer
    x = 65,139.99

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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.