Home / 99,402.21-148,989.33-49,370.49

Finding the Fourth Proportional to 99,402.21, 148,989.33 and 49,370.49

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Solution

The fourth proportional to 99,402.21, 148,989.33 and 49,370.49 is: 73,999.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,402.21 : 148,989.33 = 49,370.49 : x
  2. Step 2: Convert to fraction form
    99,402.21/148,989.33 = 49,370.49/x
  3. Step 3: Cross multiply
    99,402.21x = 148,989.33 × 49,370.49
  4. Step 4: Simplify right side
    99,402.21x = 7,355,675,481.93
  5. Step 5: Solve for x
    x = 7,355,675,481.93/99,402.21
  6. Step 6: Final answer
    x = 73,999.12

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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.