Home / 131,001.42-196,525.89-74,904.78

Finding the Fourth Proportional to 131,001.42, 196,525.89 and 74,904.78

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Solution

The fourth proportional to 131,001.42, 196,525.89 and 74,904.78 is: 112,370.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,001.42 : 196,525.89 = 74,904.78 : x
  2. Step 2: Convert to fraction form
    131,001.42/196,525.89 = 74,904.78/x
  3. Step 3: Cross multiply
    131,001.42x = 196,525.89 × 74,904.78
  4. Step 4: Simplify right side
    131,001.42x = 14,720,728,554.75
  5. Step 5: Solve for x
    x = 14,720,728,554.75/131,001.42
  6. Step 6: Final answer
    x = 112,370.76

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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.