Home / 115,249.52-172,859.64-45,178.04

Finding the Fourth Proportional to 115,249.52, 172,859.64 and 45,178.04

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Solution

The fourth proportional to 115,249.52, 172,859.64 and 45,178.04 is: 67,761.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,249.52 : 172,859.64 = 45,178.04 : x
  2. Step 2: Convert to fraction form
    115,249.52/172,859.64 = 45,178.04/x
  3. Step 3: Cross multiply
    115,249.52x = 172,859.64 × 45,178.04
  4. Step 4: Simplify right side
    115,249.52x = 7,809,459,730.31
  5. Step 5: Solve for x
    x = 7,809,459,730.31/115,249.52
  6. Step 6: Final answer
    x = 67,761.32

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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.