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Finding the Fourth Proportional to 123,124.56, 169,911.88 and 69,409.58

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Solution

The fourth proportional to 123,124.56, 169,911.88 and 69,409.58 is: 95,785.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,124.56 : 169,911.88 = 69,409.58 : x
  2. Step 2: Convert to fraction form
    123,124.56/169,911.88 = 69,409.58/x
  3. Step 3: Cross multiply
    123,124.56x = 169,911.88 × 69,409.58
  4. Step 4: Simplify right side
    123,124.56x = 11,793,511,204.73
  5. Step 5: Solve for x
    x = 11,793,511,204.73/123,124.56
  6. Step 6: Final answer
    x = 95,785.21

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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.