Home / 99,824.80-149,737.20-92,221.60

Finding the Fourth Proportional to 99,824.80, 149,737.20 and 92,221.60

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Solution

The fourth proportional to 99,824.80, 149,737.20 and 92,221.60 is: 138,332.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,824.80 : 149,737.20 = 92,221.60 : x
  2. Step 2: Convert to fraction form
    99,824.80/149,737.20 = 92,221.60/x
  3. Step 3: Cross multiply
    99,824.80x = 149,737.20 × 92,221.60
  4. Step 4: Simplify right side
    99,824.80x = 13,809,004,163.52
  5. Step 5: Solve for x
    x = 13,809,004,163.52/99,824.80
  6. Step 6: Final answer
    x = 138,332.40

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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.