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Finding the Fourth Proportional to 115,759.01, 159,675.92 and 79,443.88

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Solution

The fourth proportional to 115,759.01, 159,675.92 and 79,443.88 is: 109,583.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,759.01 : 159,675.92 = 79,443.88 : x
  2. Step 2: Convert to fraction form
    115,759.01/159,675.92 = 79,443.88/x
  3. Step 3: Cross multiply
    115,759.01x = 159,675.92 × 79,443.88
  4. Step 4: Simplify right side
    115,759.01x = 12,685,274,627.37
  5. Step 5: Solve for x
    x = 12,685,274,627.37/115,759.01
  6. Step 6: Final answer
    x = 109,583.48

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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.