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Finding the Fourth Proportional to 159,845.70, 220,571.35 and 88,221.11

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Solution

The fourth proportional to 159,845.70, 220,571.35 and 88,221.11 is: 121,736.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,845.70 : 220,571.35 = 88,221.11 : x
  2. Step 2: Convert to fraction form
    159,845.70/220,571.35 = 88,221.11/x
  3. Step 3: Cross multiply
    159,845.70x = 220,571.35 × 88,221.11
  4. Step 4: Simplify right side
    159,845.70x = 19,459,048,448.89
  5. Step 5: Solve for x
    x = 19,459,048,448.89/159,845.70
  6. Step 6: Final answer
    x = 121,736.45

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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.