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Finding the Fourth Proportional to 115,469.76, 159,372 and 67,748.16

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Solution

The fourth proportional to 115,469.76, 159,372 and 67,748.16 is: 93,506.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,469.76 : 159,372 = 67,748.16 : x
  2. Step 2: Convert to fraction form
    115,469.76/159,372 = 67,748.16/x
  3. Step 3: Cross multiply
    115,469.76x = 159,372 × 67,748.16
  4. Step 4: Simplify right side
    115,469.76x = 10,797,159,755.52
  5. Step 5: Solve for x
    x = 10,797,159,755.52/115,469.76
  6. Step 6: Final answer
    x = 93,506.38

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1.5x scale

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.