Home / 145,431.96-218,150.60-45,589.92

Finding the Fourth Proportional to 145,431.96, 218,150.60 and 45,589.92

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Solution

The fourth proportional to 145,431.96, 218,150.60 and 45,589.92 is: 68,385.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,431.96 : 218,150.60 = 45,589.92 : x
  2. Step 2: Convert to fraction form
    145,431.96/218,150.60 = 45,589.92/x
  3. Step 3: Cross multiply
    145,431.96x = 218,150.60 × 45,589.92
  4. Step 4: Simplify right side
    145,431.96x = 9,945,468,401.95
  5. Step 5: Solve for x
    x = 9,945,468,401.95/145,431.96
  6. Step 6: Final answer
    x = 68,385.71

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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.