Home / 172,704.15-259,091.16-72,864.57

Finding the Fourth Proportional to 172,704.15, 259,091.16 and 72,864.57

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Solution

The fourth proportional to 172,704.15, 259,091.16 and 72,864.57 is: 109,311.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,704.15 : 259,091.16 = 72,864.57 : x
  2. Step 2: Convert to fraction form
    172,704.15/259,091.16 = 72,864.57/x
  3. Step 3: Cross multiply
    172,704.15x = 259,091.16 × 72,864.57
  4. Step 4: Simplify right side
    172,704.15x = 18,878,565,964.20
  5. Step 5: Solve for x
    x = 18,878,565,964.20/172,704.15
  6. Step 6: Final answer
    x = 109,311.59

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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.