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Finding the Fourth Proportional to 110,331.75, 152,270.79 and 65,619.75

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Solution

The fourth proportional to 110,331.75, 152,270.79 and 65,619.75 is: 90,562.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    110,331.75 : 152,270.79 = 65,619.75 : x
  2. Step 2: Convert to fraction form
    110,331.75/152,270.79 = 65,619.75/x
  3. Step 3: Cross multiply
    110,331.75x = 152,270.79 × 65,619.75
  4. Step 4: Simplify right side
    110,331.75x = 9,991,971,172.10
  5. Step 5: Solve for x
    x = 9,991,971,172.10/110,331.75
  6. Step 6: Final answer
    x = 90,562.97

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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.