Home / 139,831.12-209,665.68-95,511.43

Finding the Fourth Proportional to 139,831.12, 209,665.68 and 95,511.43

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Solution

The fourth proportional to 139,831.12, 209,665.68 and 95,511.43 is: 143,211.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,831.12 : 209,665.68 = 95,511.43 : x
  2. Step 2: Convert to fraction form
    139,831.12/209,665.68 = 95,511.43/x
  3. Step 3: Cross multiply
    139,831.12x = 209,665.68 × 95,511.43
  4. Step 4: Simplify right side
    139,831.12x = 20,025,468,918.72
  5. Step 5: Solve for x
    x = 20,025,468,918.72/139,831.12
  6. Step 6: Final answer
    x = 143,211.82

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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.