Home / 131,243.40-196,865.10-91,002.60

Finding the Fourth Proportional to 131,243.40, 196,865.10 and 91,002.60

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Solution

The fourth proportional to 131,243.40, 196,865.10 and 91,002.60 is: 136,503.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,243.40 : 196,865.10 = 91,002.60 : x
  2. Step 2: Convert to fraction form
    131,243.40/196,865.10 = 91,002.60/x
  3. Step 3: Cross multiply
    131,243.40x = 196,865.10 × 91,002.60
  4. Step 4: Simplify right side
    131,243.40x = 17,915,235,949.26
  5. Step 5: Solve for x
    x = 17,915,235,949.26/131,243.40
  6. Step 6: Final answer
    x = 136,503.90

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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.