Home / 131,806.08-181,885.18-78,096.04

Finding the Fourth Proportional to 131,806.08, 181,885.18 and 78,096.04

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Solution

The fourth proportional to 131,806.08, 181,885.18 and 78,096.04 is: 107,768.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,806.08 : 181,885.18 = 78,096.04 : x
  2. Step 2: Convert to fraction form
    131,806.08/181,885.18 = 78,096.04/x
  3. Step 3: Cross multiply
    131,806.08x = 181,885.18 × 78,096.04
  4. Step 4: Simplify right side
    131,806.08x = 14,204,512,292.69
  5. Step 5: Solve for x
    x = 14,204,512,292.69/131,806.08
  6. Step 6: Final answer
    x = 107,768.26

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.