Home / 99,741.20-149,247.30-73,497.20

Finding the Fourth Proportional to 99,741.20, 149,247.30 and 73,497.20

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Solution

The fourth proportional to 99,741.20, 149,247.30 and 73,497.20 is: 109,977.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,741.20 : 149,247.30 = 73,497.20 : x
  2. Step 2: Convert to fraction form
    99,741.20/149,247.30 = 73,497.20/x
  3. Step 3: Cross multiply
    99,741.20x = 149,247.30 × 73,497.20
  4. Step 4: Simplify right side
    99,741.20x = 10,969,258,657.56
  5. Step 5: Solve for x
    x = 10,969,258,657.56/99,741.20
  6. Step 6: Final answer
    x = 109,977.21

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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.