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Finding the Fourth Proportional to 115,136.44, 158,867.22 and 64,147.88

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Solution

The fourth proportional to 115,136.44, 158,867.22 and 64,147.88 is: 88,512.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,136.44 : 158,867.22 = 64,147.88 : x
  2. Step 2: Convert to fraction form
    115,136.44/158,867.22 = 64,147.88/x
  3. Step 3: Cross multiply
    115,136.44x = 158,867.22 × 64,147.88
  4. Step 4: Simplify right side
    115,136.44x = 10,190,995,364.49
  5. Step 5: Solve for x
    x = 10,190,995,364.49/115,136.44
  6. Step 6: Final answer
    x = 88,512.34

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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.