Home / 111,545.24-167,427.22-81,879

Finding the Fourth Proportional to 111,545.24, 167,427.22 and 81,879

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Solution

The fourth proportional to 111,545.24, 167,427.22 and 81,879 is: 122,898.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,545.24 : 167,427.22 = 81,879 : x
  2. Step 2: Convert to fraction form
    111,545.24/167,427.22 = 81,879/x
  3. Step 3: Cross multiply
    111,545.24x = 167,427.22 × 81,879
  4. Step 4: Simplify right side
    111,545.24x = 13,708,773,346.38
  5. Step 5: Solve for x
    x = 13,708,773,346.38/111,545.24
  6. Step 6: Final answer
    x = 122,898.77

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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.