Home / 144,945.72-217,385.78-66,082.50

Finding the Fourth Proportional to 144,945.72, 217,385.78 and 66,082.50

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Solution

The fourth proportional to 144,945.72, 217,385.78 and 66,082.50 is: 99,108.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,945.72 : 217,385.78 = 66,082.50 : x
  2. Step 2: Convert to fraction form
    144,945.72/217,385.78 = 66,082.50/x
  3. Step 3: Cross multiply
    144,945.72x = 217,385.78 × 66,082.50
  4. Step 4: Simplify right side
    144,945.72x = 14,365,395,476.44
  5. Step 5: Solve for x
    x = 14,365,395,476.44/144,945.72
  6. Step 6: Final answer
    x = 99,108.79

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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.