Home / 99,665.72-149,538.39-40,506.02

Finding the Fourth Proportional to 99,665.72, 149,538.39 and 40,506.02

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Solution

The fourth proportional to 99,665.72, 149,538.39 and 40,506.02 is: 60,775.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,665.72 : 149,538.39 = 40,506.02 : x
  2. Step 2: Convert to fraction form
    99,665.72/149,538.39 = 40,506.02/x
  3. Step 3: Cross multiply
    99,665.72x = 149,538.39 × 40,506.02
  4. Step 4: Simplify right side
    99,665.72x = 6,057,205,016.11
  5. Step 5: Solve for x
    x = 6,057,205,016.11/99,665.72
  6. Step 6: Final answer
    x = 60,775.21

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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.