Home / 131,155.40-196,733.10-99,662.60

Finding the Fourth Proportional to 131,155.40, 196,733.10 and 99,662.60

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Solution

The fourth proportional to 131,155.40, 196,733.10 and 99,662.60 is: 149,493.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,155.40 : 196,733.10 = 99,662.60 : x
  2. Step 2: Convert to fraction form
    131,155.40/196,733.10 = 99,662.60/x
  3. Step 3: Cross multiply
    131,155.40x = 196,733.10 × 99,662.60
  4. Step 4: Simplify right side
    131,155.40x = 19,606,932,252.06
  5. Step 5: Solve for x
    x = 19,606,932,252.06/131,155.40
  6. Step 6: Final answer
    x = 149,493.90

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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.