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Finding the Fourth Proportional to 172,858.86, 259,266.42 and 67,751.64

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Solution

The fourth proportional to 172,858.86, 259,266.42 and 67,751.64 is: 101,618.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,858.86 : 259,266.42 = 67,751.64 : x
  2. Step 2: Convert to fraction form
    172,858.86/259,266.42 = 67,751.64/x
  3. Step 3: Cross multiply
    172,858.86x = 259,266.42 × 67,751.64
  4. Step 4: Simplify right side
    172,858.86x = 17,565,725,151.93
  5. Step 5: Solve for x
    x = 17,565,725,151.93/172,858.86
  6. Step 6: Final answer
    x = 101,618.89

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1.5x scale

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.