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Finding the Fourth Proportional to 169,394.38, 254,039.55 and 117,139.66

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Solution

The fourth proportional to 169,394.38, 254,039.55 and 117,139.66 is: 175,673.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,394.38 : 254,039.55 = 117,139.66 : x
  2. Step 2: Convert to fraction form
    169,394.38/254,039.55 = 117,139.66/x
  3. Step 3: Cross multiply
    169,394.38x = 254,039.55 × 117,139.66
  4. Step 4: Simplify right side
    169,394.38x = 29,758,106,513.55
  5. Step 5: Solve for x
    x = 29,758,106,513.55/169,394.38
  6. Step 6: Final answer
    x = 175,673.52

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.