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Finding the Fourth Proportional to 115,179.39, 158,926.52 and 64,190.84

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Solution

The fourth proportional to 115,179.39, 158,926.52 and 64,190.84 is: 88,571.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,179.39 : 158,926.52 = 64,190.84 : x
  2. Step 2: Convert to fraction form
    115,179.39/158,926.52 = 64,190.84/x
  3. Step 3: Cross multiply
    115,179.39x = 158,926.52 × 64,190.84
  4. Step 4: Simplify right side
    115,179.39x = 10,201,626,182.92
  5. Step 5: Solve for x
    x = 10,201,626,182.92/115,179.39
  6. Step 6: Final answer
    x = 88,571.63

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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.