Home / 131,108.99-196,572.35-66,942.41

Finding the Fourth Proportional to 131,108.99, 196,572.35 and 66,942.41

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Solution

The fourth proportional to 131,108.99, 196,572.35 and 66,942.41 is: 100,367.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,108.99 : 196,572.35 = 66,942.41 : x
  2. Step 2: Convert to fraction form
    131,108.99/196,572.35 = 66,942.41/x
  3. Step 3: Cross multiply
    131,108.99x = 196,572.35 × 66,942.41
  4. Step 4: Simplify right side
    131,108.99x = 13,159,025,530.79
  5. Step 5: Solve for x
    x = 13,159,025,530.79/131,108.99
  6. Step 6: Final answer
    x = 100,367.08

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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.