Home / 143,239.24-214,884.78-49,719.88

Finding the Fourth Proportional to 143,239.24, 214,884.78 and 49,719.88

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Solution

The fourth proportional to 143,239.24, 214,884.78 and 49,719.88 is: 74,588.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,239.24 : 214,884.78 = 49,719.88 : x
  2. Step 2: Convert to fraction form
    143,239.24/214,884.78 = 49,719.88/x
  3. Step 3: Cross multiply
    143,239.24x = 214,884.78 × 49,719.88
  4. Step 4: Simplify right side
    143,239.24x = 10,684,045,475.43
  5. Step 5: Solve for x
    x = 10,684,045,475.43/143,239.24
  6. Step 6: Final answer
    x = 74,588.82

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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.