Home / 215,655.15-297,601.52-120,161.55

Finding the Fourth Proportional to 215,655.15, 297,601.52 and 120,161.55

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Solution

The fourth proportional to 215,655.15, 297,601.52 and 120,161.55 is: 165,821.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,655.15 : 297,601.52 = 120,161.55 : x
  2. Step 2: Convert to fraction form
    215,655.15/297,601.52 = 120,161.55/x
  3. Step 3: Cross multiply
    215,655.15x = 297,601.52 × 120,161.55
  4. Step 4: Simplify right side
    215,655.15x = 35,760,259,324.75
  5. Step 5: Solve for x
    x = 35,760,259,324.75/215,655.15
  6. Step 6: Final answer
    x = 165,821.49

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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.