Home / 99,723.18-149,583.62-28,647.56

Finding the Fourth Proportional to 99,723.18, 149,583.62 and 28,647.56

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Solution

The fourth proportional to 99,723.18, 149,583.62 and 28,647.56 is: 42,971.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,723.18 : 149,583.62 = 28,647.56 : x
  2. Step 2: Convert to fraction form
    99,723.18/149,583.62 = 28,647.56/x
  3. Step 3: Cross multiply
    99,723.18x = 149,583.62 × 28,647.56
  4. Step 4: Simplify right side
    99,723.18x = 4,285,206,174.55
  5. Step 5: Solve for x
    x = 4,285,206,174.55/99,723.18
  6. Step 6: Final answer
    x = 42,971.01

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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.