Home / 115,217.20-172,786.20-56,014.72

Finding the Fourth Proportional to 115,217.20, 172,786.20 and 56,014.72

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Solution

The fourth proportional to 115,217.20, 172,786.20 and 56,014.72 is: 84,002.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,217.20 : 172,786.20 = 56,014.72 : x
  2. Step 2: Convert to fraction form
    115,217.20/172,786.20 = 56,014.72/x
  3. Step 3: Cross multiply
    115,217.20x = 172,786.20 × 56,014.72
  4. Step 4: Simplify right side
    115,217.20x = 9,678,570,612.86
  5. Step 5: Solve for x
    x = 9,678,570,612.86/115,217.20
  6. Step 6: Final answer
    x = 84,002.83

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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.