Home / 215,899.72-323,394.54-136,972.36

Finding the Fourth Proportional to 215,899.72, 323,394.54 and 136,972.36

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Solution

The fourth proportional to 215,899.72, 323,394.54 and 136,972.36 is: 205,169.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,899.72 : 323,394.54 = 136,972.36 : x
  2. Step 2: Convert to fraction form
    215,899.72/323,394.54 = 136,972.36/x
  3. Step 3: Cross multiply
    215,899.72x = 323,394.54 × 136,972.36
  4. Step 4: Simplify right side
    215,899.72x = 44,296,113,354.91
  5. Step 5: Solve for x
    x = 44,296,113,354.91/215,899.72
  6. Step 6: Final answer
    x = 205,169.85

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1.5x scale

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.