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Finding the Fourth Proportional to 115,227.61, 159,015.50 and 66,840.74

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Solution

The fourth proportional to 115,227.61, 159,015.50 and 66,840.74 is: 92,241.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,227.61 : 159,015.50 = 66,840.74 : x
  2. Step 2: Convert to fraction form
    115,227.61/159,015.50 = 66,840.74/x
  3. Step 3: Cross multiply
    115,227.61x = 159,015.50 × 66,840.74
  4. Step 4: Simplify right side
    115,227.61x = 10,628,713,063.49
  5. Step 5: Solve for x
    x = 10,628,713,063.49/115,227.61
  6. Step 6: Final answer
    x = 92,241.03

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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.