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Finding the Fourth Proportional to 132,554.01, 198,840.25 and 43,869.80

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Solution

The fourth proportional to 132,554.01, 198,840.25 and 43,869.80 is: 65,807.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,554.01 : 198,840.25 = 43,869.80 : x
  2. Step 2: Convert to fraction form
    132,554.01/198,840.25 = 43,869.80/x
  3. Step 3: Cross multiply
    132,554.01x = 198,840.25 × 43,869.80
  4. Step 4: Simplify right side
    132,554.01x = 8,723,081,061.76
  5. Step 5: Solve for x
    x = 8,723,081,061.76/132,554.01
  6. Step 6: Final answer
    x = 65,807.75

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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.