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Finding the Fourth Proportional to 131,201.20, 196,801.80 and 123,984.10

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Solution

The fourth proportional to 131,201.20, 196,801.80 and 123,984.10 is: 185,976.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,201.20 : 196,801.80 = 123,984.10 : x
  2. Step 2: Convert to fraction form
    131,201.20/196,801.80 = 123,984.10/x
  3. Step 3: Cross multiply
    131,201.20x = 196,801.80 × 123,984.10
  4. Step 4: Simplify right side
    131,201.20x = 24,400,294,051.38
  5. Step 5: Solve for x
    x = 24,400,294,051.38/131,201.20
  6. Step 6: Final answer
    x = 185,976.15

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1.5x scale

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.