Home / 131,433.80-197,150.70-91,344.20

Finding the Fourth Proportional to 131,433.80, 197,150.70 and 91,344.20

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Solution

The fourth proportional to 131,433.80, 197,150.70 and 91,344.20 is: 137,016.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,433.80 : 197,150.70 = 91,344.20 : x
  2. Step 2: Convert to fraction form
    131,433.80/197,150.70 = 91,344.20/x
  3. Step 3: Cross multiply
    131,433.80x = 197,150.70 × 91,344.20
  4. Step 4: Simplify right side
    131,433.80x = 18,008,572,970.94
  5. Step 5: Solve for x
    x = 18,008,572,970.94/131,433.80
  6. Step 6: Final answer
    x = 137,016.30

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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.