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Finding the Fourth Proportional to 173,067.84, 259,718.40 and 78,323.76

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Solution

The fourth proportional to 173,067.84, 259,718.40 and 78,323.76 is: 117,538.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    173,067.84 : 259,718.40 = 78,323.76 : x
  2. Step 2: Convert to fraction form
    173,067.84/259,718.40 = 78,323.76/x
  3. Step 3: Cross multiply
    173,067.84x = 259,718.40 × 78,323.76
  4. Step 4: Simplify right side
    173,067.84x = 20,342,121,629.18
  5. Step 5: Solve for x
    x = 20,342,121,629.18/173,067.84
  6. Step 6: Final answer
    x = 117,538.43

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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.