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Finding the Fourth Proportional to 109,102.60, 163,726.80 and 49,907.80

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Solution

The fourth proportional to 109,102.60, 163,726.80 and 49,907.80 is: 74,895.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,102.60 : 163,726.80 = 49,907.80 : x
  2. Step 2: Convert to fraction form
    109,102.60/163,726.80 = 49,907.80/x
  3. Step 3: Cross multiply
    109,102.60x = 163,726.80 × 49,907.80
  4. Step 4: Simplify right side
    109,102.60x = 8,171,244,389.04
  5. Step 5: Solve for x
    x = 8,171,244,389.04/109,102.60
  6. Step 6: Final answer
    x = 74,895.05

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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.