Home / 99,844.80-149,767.20-92,241.60

Finding the Fourth Proportional to 99,844.80, 149,767.20 and 92,241.60

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Solution

The fourth proportional to 99,844.80, 149,767.20 and 92,241.60 is: 138,362.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,844.80 : 149,767.20 = 92,241.60 : x
  2. Step 2: Convert to fraction form
    99,844.80/149,767.20 = 92,241.60/x
  3. Step 3: Cross multiply
    99,844.80x = 149,767.20 × 92,241.60
  4. Step 4: Simplify right side
    99,844.80x = 13,814,766,155.52
  5. Step 5: Solve for x
    x = 13,814,766,155.52/99,844.80
  6. Step 6: Final answer
    x = 138,362.40

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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.