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Finding the Fourth Proportional to 134,980, 202,480.08 and 51,874.72

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Solution

The fourth proportional to 134,980, 202,480.08 and 51,874.72 is: 77,815.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,980 : 202,480.08 = 51,874.72 : x
  2. Step 2: Convert to fraction form
    134,980/202,480.08 = 51,874.72/x
  3. Step 3: Cross multiply
    134,980x = 202,480.08 × 51,874.72
  4. Step 4: Simplify right side
    134,980x = 10,503,597,455.58
  5. Step 5: Solve for x
    x = 10,503,597,455.58/134,980
  6. Step 6: Final answer
    x = 77,815.95

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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.