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Finding the Fourth Proportional to 172,725.30, 259,070.94 and 60,384.78

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Solution

The fourth proportional to 172,725.30, 259,070.94 and 60,384.78 is: 90,571.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,725.30 : 259,070.94 = 60,384.78 : x
  2. Step 2: Convert to fraction form
    172,725.30/259,070.94 = 60,384.78/x
  3. Step 3: Cross multiply
    172,725.30x = 259,070.94 × 60,384.78
  4. Step 4: Simplify right side
    172,725.30x = 15,643,941,716.29
  5. Step 5: Solve for x
    x = 15,643,941,716.29/172,725.30
  6. Step 6: Final answer
    x = 90,571.22

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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.