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Finding the Fourth Proportional to 169,581.70, 234,064.03 and 101,638.90

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Solution

The fourth proportional to 169,581.70, 234,064.03 and 101,638.90 is: 140,286.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,581.70 : 234,064.03 = 101,638.90 : x
  2. Step 2: Convert to fraction form
    169,581.70/234,064.03 = 101,638.90/x
  3. Step 3: Cross multiply
    169,581.70x = 234,064.03 × 101,638.90
  4. Step 4: Simplify right side
    169,581.70x = 23,790,010,030.57
  5. Step 5: Solve for x
    x = 23,790,010,030.57/169,581.70
  6. Step 6: Final answer
    x = 140,286.42

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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.