Home / 99,634.80-149,452.20-66,246.60

Finding the Fourth Proportional to 99,634.80, 149,452.20 and 66,246.60

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Solution

The fourth proportional to 99,634.80, 149,452.20 and 66,246.60 is: 99,369.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,634.80 : 149,452.20 = 66,246.60 : x
  2. Step 2: Convert to fraction form
    99,634.80/149,452.20 = 66,246.60/x
  3. Step 3: Cross multiply
    99,634.80x = 149,452.20 × 66,246.60
  4. Step 4: Simplify right side
    99,634.80x = 9,900,700,112.52
  5. Step 5: Solve for x
    x = 9,900,700,112.52/99,634.80
  6. Step 6: Final answer
    x = 99,369.90

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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.