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Finding the Fourth Proportional to 172,731.76, 259,097.64 and 67,476.92

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Solution

The fourth proportional to 172,731.76, 259,097.64 and 67,476.92 is: 101,215.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,731.76 : 259,097.64 = 67,476.92 : x
  2. Step 2: Convert to fraction form
    172,731.76/259,097.64 = 67,476.92/x
  3. Step 3: Cross multiply
    172,731.76x = 259,097.64 × 67,476.92
  4. Step 4: Simplify right side
    172,731.76x = 17,483,110,726.47
  5. Step 5: Solve for x
    x = 17,483,110,726.47/172,731.76
  6. Step 6: Final answer
    x = 101,215.38

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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.