Home / 200,780.82-277,031.07-120,177.72

Finding the Fourth Proportional to 200,780.82, 277,031.07 and 120,177.72

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Solution

The fourth proportional to 200,780.82, 277,031.07 and 120,177.72 is: 165,817.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    200,780.82 : 277,031.07 = 120,177.72 : x
  2. Step 2: Convert to fraction form
    200,780.82/277,031.07 = 120,177.72/x
  3. Step 3: Cross multiply
    200,780.82x = 277,031.07 × 120,177.72
  4. Step 4: Simplify right side
    200,780.82x = 33,292,962,361.76
  5. Step 5: Solve for x
    x = 33,292,962,361.76/200,780.82
  6. Step 6: Final answer
    x = 165,817.44

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1.5x scale

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.