Home / 99,515.20-149,272.80-32,965.60

Finding the Fourth Proportional to 99,515.20, 149,272.80 and 32,965.60

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Solution

The fourth proportional to 99,515.20, 149,272.80 and 32,965.60 is: 49,448.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,515.20 : 149,272.80 = 32,965.60 : x
  2. Step 2: Convert to fraction form
    99,515.20/149,272.80 = 32,965.60/x
  3. Step 3: Cross multiply
    99,515.20x = 149,272.80 × 32,965.60
  4. Step 4: Simplify right side
    99,515.20x = 4,920,867,415.68
  5. Step 5: Solve for x
    x = 4,920,867,415.68/99,515.20
  6. Step 6: Final answer
    x = 49,448.40

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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.