Home / 215,832.42-297,878.04-123,987.60

Finding the Fourth Proportional to 215,832.42, 297,878.04 and 123,987.60

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Solution

The fourth proportional to 215,832.42, 297,878.04 and 123,987.60 is: 171,119.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,832.42 : 297,878.04 = 123,987.60 : x
  2. Step 2: Convert to fraction form
    215,832.42/297,878.04 = 123,987.60/x
  3. Step 3: Cross multiply
    215,832.42x = 297,878.04 × 123,987.60
  4. Step 4: Simplify right side
    215,832.42x = 36,933,183,272.30
  5. Step 5: Solve for x
    x = 36,933,183,272.30/215,832.42
  6. Step 6: Final answer
    x = 171,119.72

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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.