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Finding the Fourth Proportional to 132,958.80, 183,469.68 and 81,963.36

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Solution

The fourth proportional to 132,958.80, 183,469.68 and 81,963.36 is: 113,101.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,958.80 : 183,469.68 = 81,963.36 : x
  2. Step 2: Convert to fraction form
    132,958.80/183,469.68 = 81,963.36/x
  3. Step 3: Cross multiply
    132,958.80x = 183,469.68 × 81,963.36
  4. Step 4: Simplify right side
    132,958.80x = 15,037,791,430.92
  5. Step 5: Solve for x
    x = 15,037,791,430.92/132,958.80
  6. Step 6: Final answer
    x = 113,101.14

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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.