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Finding the Fourth Proportional to 168,404.94, 232,393.00 and 100,386.84

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Solution

The fourth proportional to 168,404.94, 232,393.00 and 100,386.84 is: 138,530.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,404.94 : 232,393.00 = 100,386.84 : x
  2. Step 2: Convert to fraction form
    168,404.94/232,393.00 = 100,386.84/x
  3. Step 3: Cross multiply
    168,404.94x = 232,393.00 × 100,386.84
  4. Step 4: Simplify right side
    168,404.94x = 23,329,199,716.85
  5. Step 5: Solve for x
    x = 23,329,199,716.85/168,404.94
  6. Step 6: Final answer
    x = 138,530.38

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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.