Home / 113,806.26-156,956.24-68,475.78

Finding the Fourth Proportional to 113,806.26, 156,956.24 and 68,475.78

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Solution

The fourth proportional to 113,806.26, 156,956.24 and 68,475.78 is: 94,438.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,806.26 : 156,956.24 = 68,475.78 : x
  2. Step 2: Convert to fraction form
    113,806.26/156,956.24 = 68,475.78/x
  3. Step 3: Cross multiply
    113,806.26x = 156,956.24 × 68,475.78
  4. Step 4: Simplify right side
    113,806.26x = 10,747,701,131.06
  5. Step 5: Solve for x
    x = 10,747,701,131.06/113,806.26
  6. Step 6: Final answer
    x = 94,438.58

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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.