Home / 133,989.68-184,910.28-90,441.20

Finding the Fourth Proportional to 133,989.68, 184,910.28 and 90,441.20

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Solution

The fourth proportional to 133,989.68, 184,910.28 and 90,441.20 is: 124,811.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,989.68 : 184,910.28 = 90,441.20 : x
  2. Step 2: Convert to fraction form
    133,989.68/184,910.28 = 90,441.20/x
  3. Step 3: Cross multiply
    133,989.68x = 184,910.28 × 90,441.20
  4. Step 4: Simplify right side
    133,989.68x = 16,723,507,615.54
  5. Step 5: Solve for x
    x = 16,723,507,615.54/133,989.68
  6. Step 6: Final answer
    x = 124,811.91

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.