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Finding the Fourth Proportional to 99,399.90, 149,048.77 and 29,270.10

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Solution

The fourth proportional to 99,399.90, 149,048.77 and 29,270.10 is: 43,890.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,399.90 : 149,048.77 = 29,270.10 : x
  2. Step 2: Convert to fraction form
    99,399.90/149,048.77 = 29,270.10/x
  3. Step 3: Cross multiply
    99,399.90x = 149,048.77 × 29,270.10
  4. Step 4: Simplify right side
    99,399.90x = 4,362,672,402.78
  5. Step 5: Solve for x
    x = 4,362,672,402.78/99,399.90
  6. Step 6: Final answer
    x = 43,890.11

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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.