Home / 115,005.20-172,456.60-52,694.80

Finding the Fourth Proportional to 115,005.20, 172,456.60 and 52,694.80

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Solution

The fourth proportional to 115,005.20, 172,456.60 and 52,694.80 is: 79,018.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,005.20 : 172,456.60 = 52,694.80 : x
  2. Step 2: Convert to fraction form
    115,005.20/172,456.60 = 52,694.80/x
  3. Step 3: Cross multiply
    115,005.20x = 172,456.60 × 52,694.80
  4. Step 4: Simplify right side
    115,005.20x = 9,087,566,045.68
  5. Step 5: Solve for x
    x = 9,087,566,045.68/115,005.20
  6. Step 6: Final answer
    x = 79,018.74

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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.