Home / 115,440.15-172,847.43-59,919.51

Finding the Fourth Proportional to 115,440.15, 172,847.43 and 59,919.51

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Solution

The fourth proportional to 115,440.15, 172,847.43 and 59,919.51 is: 89,716.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,440.15 : 172,847.43 = 59,919.51 : x
  2. Step 2: Convert to fraction form
    115,440.15/172,847.43 = 59,919.51/x
  3. Step 3: Cross multiply
    115,440.15x = 172,847.43 × 59,919.51
  4. Step 4: Simplify right side
    115,440.15x = 10,356,933,310.36
  5. Step 5: Solve for x
    x = 10,356,933,310.36/115,440.15
  6. Step 6: Final answer
    x = 89,716.91

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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.