Home / 106,318.29-159,544.21-43,138.70

Finding the Fourth Proportional to 106,318.29, 159,544.21 and 43,138.70

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Solution

The fourth proportional to 106,318.29, 159,544.21 and 43,138.70 is: 64,735.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,318.29 : 159,544.21 = 43,138.70 : x
  2. Step 2: Convert to fraction form
    106,318.29/159,544.21 = 43,138.70/x
  3. Step 3: Cross multiply
    106,318.29x = 159,544.21 × 43,138.70
  4. Step 4: Simplify right side
    106,318.29x = 6,882,529,666.42
  5. Step 5: Solve for x
    x = 6,882,529,666.42/106,318.29
  6. Step 6: Final answer
    x = 64,735.14

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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.