Home / 215,939.06-297,989.49-120,443.60

Finding the Fourth Proportional to 215,939.06, 297,989.49 and 120,443.60

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Solution

The fourth proportional to 215,939.06, 297,989.49 and 120,443.60 is: 166,208.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,939.06 : 297,989.49 = 120,443.60 : x
  2. Step 2: Convert to fraction form
    215,939.06/297,989.49 = 120,443.60/x
  3. Step 3: Cross multiply
    215,939.06x = 297,989.49 × 120,443.60
  4. Step 4: Simplify right side
    215,939.06x = 35,890,926,937.76
  5. Step 5: Solve for x
    x = 35,890,926,937.76/215,939.06
  6. Step 6: Final answer
    x = 166,208.59

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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.