Home / 115,211.30-172,835.14-40,329.62

Finding the Fourth Proportional to 115,211.30, 172,835.14 and 40,329.62

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Solution

The fourth proportional to 115,211.30, 172,835.14 and 40,329.62 is: 60,500.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,211.30 : 172,835.14 = 40,329.62 : x
  2. Step 2: Convert to fraction form
    115,211.30/172,835.14 = 40,329.62/x
  3. Step 3: Cross multiply
    115,211.30x = 172,835.14 × 40,329.62
  4. Step 4: Simplify right side
    115,211.30x = 6,970,375,518.85
  5. Step 5: Solve for x
    x = 6,970,375,518.85/115,211.30
  6. Step 6: Final answer
    x = 60,500.80

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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.