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Finding the Fourth Proportional to 99,801.69, 137,726.66 and 54,480.67

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Solution

The fourth proportional to 99,801.69, 137,726.66 and 54,480.67 is: 75,183.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,801.69 : 137,726.66 = 54,480.67 : x
  2. Step 2: Convert to fraction form
    99,801.69/137,726.66 = 54,480.67/x
  3. Step 3: Cross multiply
    99,801.69x = 137,726.66 × 54,480.67
  4. Step 4: Simplify right side
    99,801.69x = 7,503,440,505.55
  5. Step 5: Solve for x
    x = 7,503,440,505.55/99,801.69
  6. Step 6: Final answer
    x = 75,183.50

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