Home / 143,564.70-215,347.14-68,667.24

Finding the Fourth Proportional to 143,564.70, 215,347.14 and 68,667.24

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Solution

The fourth proportional to 143,564.70, 215,347.14 and 68,667.24 is: 103,000.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,564.70 : 215,347.14 = 68,667.24 : x
  2. Step 2: Convert to fraction form
    143,564.70/215,347.14 = 68,667.24/x
  3. Step 3: Cross multiply
    143,564.70x = 215,347.14 × 68,667.24
  4. Step 4: Simplify right side
    143,564.70x = 14,787,293,745.69
  5. Step 5: Solve for x
    x = 14,787,293,745.69/143,564.70
  6. Step 6: Final answer
    x = 103,000.90

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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.