Home / 99,736.20-149,239.80-73,492.20

Finding the Fourth Proportional to 99,736.20, 149,239.80 and 73,492.20

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Solution

The fourth proportional to 99,736.20, 149,239.80 and 73,492.20 is: 109,969.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,736.20 : 149,239.80 = 73,492.20 : x
  2. Step 2: Convert to fraction form
    99,736.20/149,239.80 = 73,492.20/x
  3. Step 3: Cross multiply
    99,736.20x = 149,239.80 × 73,492.20
  4. Step 4: Simplify right side
    99,736.20x = 10,967,961,229.56
  5. Step 5: Solve for x
    x = 10,967,961,229.56/99,736.20
  6. Step 6: Final answer
    x = 109,969.71

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1.5x scale

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.