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Finding the Fourth Proportional to 163,740.66, 225,841.17 and 112,769.56

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Solution

The fourth proportional to 163,740.66, 225,841.17 and 112,769.56 is: 155,538.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,740.66 : 225,841.17 = 112,769.56 : x
  2. Step 2: Convert to fraction form
    163,740.66/225,841.17 = 112,769.56/x
  3. Step 3: Cross multiply
    163,740.66x = 225,841.17 × 112,769.56
  4. Step 4: Simplify right side
    163,740.66x = 25,468,009,370.79
  5. Step 5: Solve for x
    x = 25,468,009,370.79/163,740.66
  6. Step 6: Final answer
    x = 155,538.70

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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.