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Finding the Fourth Proportional to 172,955.20, 259,238.40 and 88,682.80

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Solution

The fourth proportional to 172,955.20, 259,238.40 and 88,682.80 is: 132,924.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,955.20 : 259,238.40 = 88,682.80 : x
  2. Step 2: Convert to fraction form
    172,955.20/259,238.40 = 88,682.80/x
  3. Step 3: Cross multiply
    172,955.20x = 259,238.40 × 88,682.80
  4. Step 4: Simplify right side
    172,955.20x = 22,989,987,179.52
  5. Step 5: Solve for x
    x = 22,989,987,179.52/172,955.20
  6. Step 6: Final answer
    x = 132,924.52

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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.