Home / 213,545.24-320,511.08-113,789.72

Finding the Fourth Proportional to 213,545.24, 320,511.08 and 113,789.72

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Solution

The fourth proportional to 213,545.24, 320,511.08 and 113,789.72 is: 170,787.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,545.24 : 320,511.08 = 113,789.72 : x
  2. Step 2: Convert to fraction form
    213,545.24/320,511.08 = 113,789.72/x
  3. Step 3: Cross multiply
    213,545.24x = 320,511.08 × 113,789.72
  4. Step 4: Simplify right side
    213,545.24x = 36,470,866,050.10
  5. Step 5: Solve for x
    x = 36,470,866,050.10/213,545.24
  6. Step 6: Final answer
    x = 170,787.54

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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.