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Finding the Fourth Proportional to 123,107.58, 169,886.08 and 69,391.56

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Solution

The fourth proportional to 123,107.58, 169,886.08 and 69,391.56 is: 95,759.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,107.58 : 169,886.08 = 69,391.56 : x
  2. Step 2: Convert to fraction form
    123,107.58/169,886.08 = 69,391.56/x
  3. Step 3: Cross multiply
    123,107.58x = 169,886.08 × 69,391.56
  4. Step 4: Simplify right side
    123,107.58x = 11,788,660,113.48
  5. Step 5: Solve for x
    x = 11,788,660,113.48/123,107.58
  6. Step 6: Final answer
    x = 95,759.01

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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.