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Finding the Fourth Proportional to 132,571.75, 182,949.05 and 72,955.75

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Solution

The fourth proportional to 132,571.75, 182,949.05 and 72,955.75 is: 100,678.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,571.75 : 182,949.05 = 72,955.75 : x
  2. Step 2: Convert to fraction form
    132,571.75/182,949.05 = 72,955.75/x
  3. Step 3: Cross multiply
    132,571.75x = 182,949.05 × 72,955.75
  4. Step 4: Simplify right side
    132,571.75x = 13,347,185,154.54
  5. Step 5: Solve for x
    x = 13,347,185,154.54/132,571.75
  6. Step 6: Final answer
    x = 100,678.95

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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.