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Finding the Fourth Proportional to 132,426.40, 198,716.40 and 49,328.80

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Solution

The fourth proportional to 132,426.40, 198,716.40 and 49,328.80 is: 74,021.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,426.40 : 198,716.40 = 49,328.80 : x
  2. Step 2: Convert to fraction form
    132,426.40/198,716.40 = 49,328.80/x
  3. Step 3: Cross multiply
    132,426.40x = 198,716.40 × 49,328.80
  4. Step 4: Simplify right side
    132,426.40x = 9,802,441,552.32
  5. Step 5: Solve for x
    x = 9,802,441,552.32/132,426.40
  6. Step 6: Final answer
    x = 74,021.81

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1.5x scale

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.