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Finding the Fourth Proportional to 123,017.14, 169,743.10 and 68,557.42

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Solution

The fourth proportional to 123,017.14, 169,743.10 and 68,557.42 is: 94,597.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,017.14 : 169,743.10 = 68,557.42 : x
  2. Step 2: Convert to fraction form
    123,017.14/169,743.10 = 68,557.42/x
  3. Step 3: Cross multiply
    123,017.14x = 169,743.10 × 68,557.42
  4. Step 4: Simplify right side
    123,017.14x = 11,637,148,872.32
  5. Step 5: Solve for x
    x = 11,637,148,872.32/123,017.14
  6. Step 6: Final answer
    x = 94,597.78

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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.