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Finding the Fourth Proportional to 124,558, 171,890.08 and 79,846

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Solution

The fourth proportional to 124,558, 171,890.08 and 79,846 is: 110,187.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,558 : 171,890.08 = 79,846 : x
  2. Step 2: Convert to fraction form
    124,558/171,890.08 = 79,846/x
  3. Step 3: Cross multiply
    124,558x = 171,890.08 × 79,846
  4. Step 4: Simplify right side
    124,558x = 13,724,735,327.68
  5. Step 5: Solve for x
    x = 13,724,735,327.68/124,558
  6. Step 6: Final answer
    x = 110,187.51

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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.