Home / 131,610.35-196,896.10-99,681.42

Finding the Fourth Proportional to 131,610.35, 196,896.10 and 99,681.42

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Solution

The fourth proportional to 131,610.35, 196,896.10 and 99,681.42 is: 149,128.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,610.35 : 196,896.10 = 99,681.42 : x
  2. Step 2: Convert to fraction form
    131,610.35/196,896.10 = 99,681.42/x
  3. Step 3: Cross multiply
    131,610.35x = 196,896.10 × 99,681.42
  4. Step 4: Simplify right side
    131,610.35x = 19,626,882,130.94
  5. Step 5: Solve for x
    x = 19,626,882,130.94/131,610.35
  6. Step 6: Final answer
    x = 149,128.72

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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.