Home / 115,133.79-172,716.41-40,236.56

Finding the Fourth Proportional to 115,133.79, 172,716.41 and 40,236.56

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Solution

The fourth proportional to 115,133.79, 172,716.41 and 40,236.56 is: 60,360.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,133.79 : 172,716.41 = 40,236.56 : x
  2. Step 2: Convert to fraction form
    115,133.79/172,716.41 = 40,236.56/x
  3. Step 3: Cross multiply
    115,133.79x = 172,716.41 × 40,236.56
  4. Step 4: Simplify right side
    115,133.79x = 6,949,514,193.95
  5. Step 5: Solve for x
    x = 6,949,514,193.95/115,133.79
  6. Step 6: Final answer
    x = 60,360.34

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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.