Home / 144,749.20-217,318.20-92,390.80

Finding the Fourth Proportional to 144,749.20, 217,318.20 and 92,390.80

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Solution

The fourth proportional to 144,749.20, 217,318.20 and 92,390.80 is: 138,710.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,749.20 : 217,318.20 = 92,390.80 : x
  2. Step 2: Convert to fraction form
    144,749.20/217,318.20 = 92,390.80/x
  3. Step 3: Cross multiply
    144,749.20x = 217,318.20 × 92,390.80
  4. Step 4: Simplify right side
    144,749.20x = 20,078,202,352.56
  5. Step 5: Solve for x
    x = 20,078,202,352.56/144,749.20
  6. Step 6: Final answer
    x = 138,710.28

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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.