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Finding the Fourth Proportional to 108,877, 163,325.81 and 42,322.27

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Solution

The fourth proportional to 108,877, 163,325.81 and 42,322.27 is: 63,487.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,877 : 163,325.81 = 42,322.27 : x
  2. Step 2: Convert to fraction form
    108,877/163,325.81 = 42,322.27/x
  3. Step 3: Cross multiply
    108,877x = 163,325.81 × 42,322.27
  4. Step 4: Simplify right side
    108,877x = 6,912,319,028.79
  5. Step 5: Solve for x
    x = 6,912,319,028.79/108,877
  6. Step 6: Final answer
    x = 63,487.41

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.