Home / 112,067.45-167,864.15-90,628.17

Finding the Fourth Proportional to 112,067.45, 167,864.15 and 90,628.17

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Solution

The fourth proportional to 112,067.45, 167,864.15 and 90,628.17 is: 135,750.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,067.45 : 167,864.15 = 90,628.17 : x
  2. Step 2: Convert to fraction form
    112,067.45/167,864.15 = 90,628.17/x
  3. Step 3: Cross multiply
    112,067.45x = 167,864.15 × 90,628.17
  4. Step 4: Simplify right side
    112,067.45x = 15,213,219,810.40
  5. Step 5: Solve for x
    x = 15,213,219,810.40/112,067.45
  6. Step 6: Final answer
    x = 135,750.57

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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.