Home / 202,921.43-280,039.83-112,275.92

Finding the Fourth Proportional to 202,921.43, 280,039.83 and 112,275.92

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Solution

The fourth proportional to 202,921.43, 280,039.83 and 112,275.92 is: 154,945.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,921.43 : 280,039.83 = 112,275.92 : x
  2. Step 2: Convert to fraction form
    202,921.43/280,039.83 = 112,275.92/x
  3. Step 3: Cross multiply
    202,921.43x = 280,039.83 × 112,275.92
  4. Step 4: Simplify right side
    202,921.43x = 31,441,730,249.99
  5. Step 5: Solve for x
    x = 31,441,730,249.99/202,921.43
  6. Step 6: Final answer
    x = 154,945.34

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.