Home / 145,422.05-218,126.72-45,579.96

Finding the Fourth Proportional to 145,422.05, 218,126.72 and 45,579.96

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Solution

The fourth proportional to 145,422.05, 218,126.72 and 45,579.96 is: 68,367.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,422.05 : 218,126.72 = 45,579.96 : x
  2. Step 2: Convert to fraction form
    145,422.05/218,126.72 = 45,579.96/x
  3. Step 3: Cross multiply
    145,422.05x = 218,126.72 × 45,579.96
  4. Step 4: Simplify right side
    145,422.05x = 9,942,207,286.48
  5. Step 5: Solve for x
    x = 9,942,207,286.48/145,422.05
  6. Step 6: Final answer
    x = 68,367.95

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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.