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Finding the Fourth Proportional to 122,743.62, 169,384.59 and 69,028.62

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Solution

The fourth proportional to 122,743.62, 169,384.59 and 69,028.62 is: 95,258.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,743.62 : 169,384.59 = 69,028.62 : x
  2. Step 2: Convert to fraction form
    122,743.62/169,384.59 = 69,028.62/x
  3. Step 3: Cross multiply
    122,743.62x = 169,384.59 × 69,028.62
  4. Step 4: Simplify right side
    122,743.62x = 11,692,384,496.97
  5. Step 5: Solve for x
    x = 11,692,384,496.97/122,743.62
  6. Step 6: Final answer
    x = 95,258.59

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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.