Home / 215,926.96-297,979.62-120,439.84

Finding the Fourth Proportional to 215,926.96, 297,979.62 and 120,439.84

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Solution

The fourth proportional to 215,926.96, 297,979.62 and 120,439.84 is: 166,207.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,926.96 : 297,979.62 = 120,439.84 : x
  2. Step 2: Convert to fraction form
    215,926.96/297,979.62 = 120,439.84/x
  3. Step 3: Cross multiply
    215,926.96x = 297,979.62 × 120,439.84
  4. Step 4: Simplify right side
    215,926.96x = 35,888,617,756.06
  5. Step 5: Solve for x
    x = 35,888,617,756.06/215,926.96
  6. Step 6: Final answer
    x = 166,207.21

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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.