Home / 215,112.20-296,862.03-118,320.14

Finding the Fourth Proportional to 215,112.20, 296,862.03 and 118,320.14

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Solution

The fourth proportional to 215,112.20, 296,862.03 and 118,320.14 is: 163,285.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,112.20 : 296,862.03 = 118,320.14 : x
  2. Step 2: Convert to fraction form
    215,112.20/296,862.03 = 118,320.14/x
  3. Step 3: Cross multiply
    215,112.20x = 296,862.03 × 118,320.14
  4. Step 4: Simplify right side
    215,112.20x = 35,124,757,692.44
  5. Step 5: Solve for x
    x = 35,124,757,692.44/215,112.20
  6. Step 6: Final answer
    x = 163,285.76

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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.