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Finding the Fourth Proportional to 149,103.40, 205,684.27 and 88,631.03

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Solution

The fourth proportional to 149,103.40, 205,684.27 and 88,631.03 is: 122,264.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,103.40 : 205,684.27 = 88,631.03 : x
  2. Step 2: Convert to fraction form
    149,103.40/205,684.27 = 88,631.03/x
  3. Step 3: Cross multiply
    149,103.40x = 205,684.27 × 88,631.03
  4. Step 4: Simplify right side
    149,103.40x = 18,230,008,704.90
  5. Step 5: Solve for x
    x = 18,230,008,704.90/149,103.40
  6. Step 6: Final answer
    x = 122,264.21

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Why These Related Problems?

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