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Finding the Fourth Proportional to 199,630.80, 275,536.80 and 131,659.92

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Solution

The fourth proportional to 199,630.80, 275,536.80 and 131,659.92 is: 181,721.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,630.80 : 275,536.80 = 131,659.92 : x
  2. Step 2: Convert to fraction form
    199,630.80/275,536.80 = 131,659.92/x
  3. Step 3: Cross multiply
    199,630.80x = 275,536.80 × 131,659.92
  4. Step 4: Simplify right side
    199,630.80x = 36,277,153,045.06
  5. Step 5: Solve for x
    x = 36,277,153,045.06/199,630.80
  6. Step 6: Final answer
    x = 181,721.22

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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.