Home / 215,924.78-297,976.65-120,429.02

Finding the Fourth Proportional to 215,924.78, 297,976.65 and 120,429.02

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Solution

The fourth proportional to 215,924.78, 297,976.65 and 120,429.02 is: 166,192.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,924.78 : 297,976.65 = 120,429.02 : x
  2. Step 2: Convert to fraction form
    215,924.78/297,976.65 = 120,429.02/x
  3. Step 3: Cross multiply
    215,924.78x = 297,976.65 × 120,429.02
  4. Step 4: Simplify right side
    215,924.78x = 35,885,035,942.38
  5. Step 5: Solve for x
    x = 35,885,035,942.38/215,924.78
  6. Step 6: Final answer
    x = 166,192.30

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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.