Home / 115,028.04-172,542.63-40,147.86

Finding the Fourth Proportional to 115,028.04, 172,542.63 and 40,147.86

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Solution

The fourth proportional to 115,028.04, 172,542.63 and 40,147.86 is: 60,221.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,028.04 : 172,542.63 = 40,147.86 : x
  2. Step 2: Convert to fraction form
    115,028.04/172,542.63 = 40,147.86/x
  3. Step 3: Cross multiply
    115,028.04x = 172,542.63 × 40,147.86
  4. Step 4: Simplify right side
    115,028.04x = 6,927,217,353.27
  5. Step 5: Solve for x
    x = 6,927,217,353.27/115,028.04
  6. Step 6: Final answer
    x = 60,221.99

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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.