Home / 99,627.48-149,230.53-80,570.34

Finding the Fourth Proportional to 99,627.48, 149,230.53 and 80,570.34

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Solution

The fourth proportional to 99,627.48, 149,230.53 and 80,570.34 is: 120,685.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,627.48 : 149,230.53 = 80,570.34 : x
  2. Step 2: Convert to fraction form
    99,627.48/149,230.53 = 80,570.34/x
  3. Step 3: Cross multiply
    99,627.48x = 149,230.53 × 80,570.34
  4. Step 4: Simplify right side
    99,627.48x = 12,023,554,540.48
  5. Step 5: Solve for x
    x = 12,023,554,540.48/99,627.48
  6. Step 6: Final answer
    x = 120,685.12

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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.