Home / 130,985.46-196,182.79-91,717.88

Finding the Fourth Proportional to 130,985.46, 196,182.79 and 91,717.88

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Solution

The fourth proportional to 130,985.46, 196,182.79 and 91,717.88 is: 137,369.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,985.46 : 196,182.79 = 91,717.88 : x
  2. Step 2: Convert to fraction form
    130,985.46/196,182.79 = 91,717.88/x
  3. Step 3: Cross multiply
    130,985.46x = 196,182.79 × 91,717.88
  4. Step 4: Simplify right side
    130,985.46x = 17,993,469,591.29
  5. Step 5: Solve for x
    x = 17,993,469,591.29/130,985.46
  6. Step 6: Final answer
    x = 137,369.98

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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.