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Finding the Fourth Proportional to 104,475.76, 144,209.37 and 66,749.92

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Solution

The fourth proportional to 104,475.76, 144,209.37 and 66,749.92 is: 92,135.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,475.76 : 144,209.37 = 66,749.92 : x
  2. Step 2: Convert to fraction form
    104,475.76/144,209.37 = 66,749.92/x
  3. Step 3: Cross multiply
    104,475.76x = 144,209.37 × 66,749.92
  4. Step 4: Simplify right side
    104,475.76x = 9,625,963,910.75
  5. Step 5: Solve for x
    x = 9,625,963,910.75/104,475.76
  6. Step 6: Final answer
    x = 92,135.86

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.