Home / 215,877.10-323,813.49-121,107.10

Finding the Fourth Proportional to 215,877.10, 323,813.49 and 121,107.10

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Solution

The fourth proportional to 215,877.10, 323,813.49 and 121,107.10 is: 181,659.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,877.10 : 323,813.49 = 121,107.10 : x
  2. Step 2: Convert to fraction form
    215,877.10/323,813.49 = 121,107.10/x
  3. Step 3: Cross multiply
    215,877.10x = 323,813.49 × 121,107.10
  4. Step 4: Simplify right side
    215,877.10x = 39,216,112,714.78
  5. Step 5: Solve for x
    x = 39,216,112,714.78/215,877.10
  6. Step 6: Final answer
    x = 181,659.44

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.