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Finding the Fourth Proportional to 123,194.63, 169,947.45 and 79,572.17

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Solution

The fourth proportional to 123,194.63, 169,947.45 and 79,572.17 is: 109,770.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,194.63 : 169,947.45 = 79,572.17 : x
  2. Step 2: Convert to fraction form
    123,194.63/169,947.45 = 79,572.17/x
  3. Step 3: Cross multiply
    123,194.63x = 169,947.45 × 79,572.17
  4. Step 4: Simplify right side
    123,194.63x = 13,523,086,532.73
  5. Step 5: Solve for x
    x = 13,523,086,532.73/123,194.63
  6. Step 6: Final answer
    x = 109,770.10

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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.