Home / 125,341.72-172,979.22-82,826.44

Finding the Fourth Proportional to 125,341.72, 172,979.22 and 82,826.44

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Solution

The fourth proportional to 125,341.72, 172,979.22 and 82,826.44 is: 114,305.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,341.72 : 172,979.22 = 82,826.44 : x
  2. Step 2: Convert to fraction form
    125,341.72/172,979.22 = 82,826.44/x
  3. Step 3: Cross multiply
    125,341.72x = 172,979.22 × 82,826.44
  4. Step 4: Simplify right side
    125,341.72x = 14,327,252,986.58
  5. Step 5: Solve for x
    x = 14,327,252,986.58/125,341.72
  6. Step 6: Final answer
    x = 114,305.54

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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.