Home / 131,039.63-196,264.09-91,772.04

Finding the Fourth Proportional to 131,039.63, 196,264.09 and 91,772.04

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Solution

The fourth proportional to 131,039.63, 196,264.09 and 91,772.04 is: 137,451.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,039.63 : 196,264.09 = 91,772.04 : x
  2. Step 2: Convert to fraction form
    131,039.63/196,264.09 = 91,772.04/x
  3. Step 3: Cross multiply
    131,039.63x = 196,264.09 × 91,772.04
  4. Step 4: Simplify right side
    131,039.63x = 18,011,555,918.04
  5. Step 5: Solve for x
    x = 18,011,555,918.04/131,039.63
  6. Step 6: Final answer
    x = 137,451.21

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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.