Home / 223,545.18-335,339.64-81,429.06

Finding the Fourth Proportional to 223,545.18, 335,339.64 and 81,429.06

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Solution

The fourth proportional to 223,545.18, 335,339.64 and 81,429.06 is: 122,151.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    223,545.18 : 335,339.64 = 81,429.06 : x
  2. Step 2: Convert to fraction form
    223,545.18/335,339.64 = 81,429.06/x
  3. Step 3: Cross multiply
    223,545.18x = 335,339.64 × 81,429.06
  4. Step 4: Simplify right side
    223,545.18x = 27,306,391,665.94
  5. Step 5: Solve for x
    x = 27,306,391,665.94/223,545.18
  6. Step 6: Final answer
    x = 122,151.56

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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.