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Finding the Fourth Proportional to 149,008.80, 205,708.34 and 114,940.80

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Solution

The fourth proportional to 149,008.80, 205,708.34 and 114,940.80 is: 158,677.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,008.80 : 205,708.34 = 114,940.80 : x
  2. Step 2: Convert to fraction form
    149,008.80/205,708.34 = 114,940.80/x
  3. Step 3: Cross multiply
    149,008.80x = 205,708.34 × 114,940.80
  4. Step 4: Simplify right side
    149,008.80x = 23,644,280,591.57
  5. Step 5: Solve for x
    x = 23,644,280,591.57/149,008.80
  6. Step 6: Final answer
    x = 158,677.08

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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.