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Finding the Fourth Proportional to 123,341.70, 170,244.42 and 69,658.14

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Solution

The fourth proportional to 123,341.70, 170,244.42 and 69,658.14 is: 96,146.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,341.70 : 170,244.42 = 69,658.14 : x
  2. Step 2: Convert to fraction form
    123,341.70/170,244.42 = 69,658.14/x
  3. Step 3: Cross multiply
    123,341.70x = 170,244.42 × 69,658.14
  4. Step 4: Simplify right side
    123,341.70x = 11,858,909,642.58
  5. Step 5: Solve for x
    x = 11,858,909,642.58/123,341.70
  6. Step 6: Final answer
    x = 96,146.80

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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.