Home / 115,103.05-172,678.11-48,543.24

Finding the Fourth Proportional to 115,103.05, 172,678.11 and 48,543.24

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Solution

The fourth proportional to 115,103.05, 172,678.11 and 48,543.24 is: 72,824.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,103.05 : 172,678.11 = 48,543.24 : x
  2. Step 2: Convert to fraction form
    115,103.05/172,678.11 = 48,543.24/x
  3. Step 3: Cross multiply
    115,103.05x = 172,678.11 × 48,543.24
  4. Step 4: Simplify right side
    115,103.05x = 8,382,354,936.48
  5. Step 5: Solve for x
    x = 8,382,354,936.48/115,103.05
  6. Step 6: Final answer
    x = 72,824.79

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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.