Home / 115,015.80-172,523.70-36,129.90

Finding the Fourth Proportional to 115,015.80, 172,523.70 and 36,129.90

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Solution

The fourth proportional to 115,015.80, 172,523.70 and 36,129.90 is: 54,194.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,015.80 : 172,523.70 = 36,129.90 : x
  2. Step 2: Convert to fraction form
    115,015.80/172,523.70 = 36,129.90/x
  3. Step 3: Cross multiply
    115,015.80x = 172,523.70 × 36,129.90
  4. Step 4: Simplify right side
    115,015.80x = 6,233,264,028.63
  5. Step 5: Solve for x
    x = 6,233,264,028.63/115,015.80
  6. Step 6: Final answer
    x = 54,194.85

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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.