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Finding the Fourth Proportional to 159,740.78, 220,440.83 and 88,121.39

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Solution

The fourth proportional to 159,740.78, 220,440.83 and 88,121.39 is: 121,606.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,740.78 : 220,440.83 = 88,121.39 : x
  2. Step 2: Convert to fraction form
    159,740.78/220,440.83 = 88,121.39/x
  3. Step 3: Cross multiply
    159,740.78x = 220,440.83 × 88,121.39
  4. Step 4: Simplify right side
    159,740.78x = 19,425,550,809.54
  5. Step 5: Solve for x
    x = 19,425,550,809.54/159,740.78
  6. Step 6: Final answer
    x = 121,606.71

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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.