Home / 131,193.86-196,791.21-36,431.46

Finding the Fourth Proportional to 131,193.86, 196,791.21 and 36,431.46

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Solution

The fourth proportional to 131,193.86, 196,791.21 and 36,431.46 is: 54,647.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,193.86 : 196,791.21 = 36,431.46 : x
  2. Step 2: Convert to fraction form
    131,193.86/196,791.21 = 36,431.46/x
  3. Step 3: Cross multiply
    131,193.86x = 196,791.21 × 36,431.46
  4. Step 4: Simplify right side
    131,193.86x = 7,169,391,095.47
  5. Step 5: Solve for x
    x = 7,169,391,095.47/131,193.86
  6. Step 6: Final answer
    x = 54,647.31

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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.