Home / 200,715.32-276,996.12-120,127.52

Finding the Fourth Proportional to 200,715.32, 276,996.12 and 120,127.52

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Solution

The fourth proportional to 200,715.32, 276,996.12 and 120,127.52 is: 165,781.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    200,715.32 : 276,996.12 = 120,127.52 : x
  2. Step 2: Convert to fraction form
    200,715.32/276,996.12 = 120,127.52/x
  3. Step 3: Cross multiply
    200,715.32x = 276,996.12 × 120,127.52
  4. Step 4: Simplify right side
    200,715.32x = 33,274,856,945.22
  5. Step 5: Solve for x
    x = 33,274,856,945.22/200,715.32
  6. Step 6: Final answer
    x = 165,781.35

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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.