Home / 143,446.24-214,709.28-76,719.52

Finding the Fourth Proportional to 143,446.24, 214,709.28 and 76,719.52

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Solution

The fourth proportional to 143,446.24, 214,709.28 and 76,719.52 is: 114,833.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,446.24 : 214,709.28 = 76,719.52 : x
  2. Step 2: Convert to fraction form
    143,446.24/214,709.28 = 76,719.52/x
  3. Step 3: Cross multiply
    143,446.24x = 214,709.28 × 76,719.52
  4. Step 4: Simplify right side
    143,446.24x = 16,472,392,901.15
  5. Step 5: Solve for x
    x = 16,472,392,901.15/143,446.24
  6. Step 6: Final answer
    x = 114,833.21

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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.