Home / 215,929.56-323,831.70-82,800.12

Finding the Fourth Proportional to 215,929.56, 323,831.70 and 82,800.12

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Solution

The fourth proportional to 215,929.56, 323,831.70 and 82,800.12 is: 124,176.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,929.56 : 323,831.70 = 82,800.12 : x
  2. Step 2: Convert to fraction form
    215,929.56/323,831.70 = 82,800.12/x
  3. Step 3: Cross multiply
    215,929.56x = 323,831.70 × 82,800.12
  4. Step 4: Simplify right side
    215,929.56x = 26,813,303,619.80
  5. Step 5: Solve for x
    x = 26,813,303,619.80/215,929.56
  6. Step 6: Final answer
    x = 124,176.16

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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.