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Finding the Fourth Proportional to 123,119.87, 169,903.14 and 69,404.93

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Solution

The fourth proportional to 123,119.87, 169,903.14 and 69,404.93 is: 95,777.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,119.87 : 169,903.14 = 69,404.93 : x
  2. Step 2: Convert to fraction form
    123,119.87/169,903.14 = 69,404.93/x
  3. Step 3: Cross multiply
    123,119.87x = 169,903.14 × 69,404.93
  4. Step 4: Simplify right side
    123,119.87x = 11,792,115,173.58
  5. Step 5: Solve for x
    x = 11,792,115,173.58/123,119.87
  6. Step 6: Final answer
    x = 95,777.51

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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.