Home / 111,716.20-167,444.70-45,123.40

Finding the Fourth Proportional to 111,716.20, 167,444.70 and 45,123.40

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Solution

The fourth proportional to 111,716.20, 167,444.70 and 45,123.40 is: 67,632.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,716.20 : 167,444.70 = 45,123.40 : x
  2. Step 2: Convert to fraction form
    111,716.20/167,444.70 = 45,123.40/x
  3. Step 3: Cross multiply
    111,716.20x = 167,444.70 × 45,123.40
  4. Step 4: Simplify right side
    111,716.20x = 7,555,674,175.98
  5. Step 5: Solve for x
    x = 7,555,674,175.98/111,716.20
  6. Step 6: Final answer
    x = 67,632.75

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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.