Home / 115,215.20-172,822.80-32,109.20

Finding the Fourth Proportional to 115,215.20, 172,822.80 and 32,109.20

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Solution

The fourth proportional to 115,215.20, 172,822.80 and 32,109.20 is: 48,163.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,215.20 : 172,822.80 = 32,109.20 : x
  2. Step 2: Convert to fraction form
    115,215.20/172,822.80 = 32,109.20/x
  3. Step 3: Cross multiply
    115,215.20x = 172,822.80 × 32,109.20
  4. Step 4: Simplify right side
    115,215.20x = 5,549,201,849.76
  5. Step 5: Solve for x
    x = 5,549,201,849.76/115,215.20
  6. Step 6: Final answer
    x = 48,163.80

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1.5x scale

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.