Home / 236,905.39-355,305.90-68,389.12

Finding the Fourth Proportional to 236,905.39, 355,305.90 and 68,389.12

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Solution

The fourth proportional to 236,905.39, 355,305.90 and 68,389.12 is: 102,568.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    236,905.39 : 355,305.90 = 68,389.12 : x
  2. Step 2: Convert to fraction form
    236,905.39/355,305.90 = 68,389.12/x
  3. Step 3: Cross multiply
    236,905.39x = 355,305.90 × 68,389.12
  4. Step 4: Simplify right side
    236,905.39x = 24,299,057,831.81
  5. Step 5: Solve for x
    x = 24,299,057,831.81/236,905.39
  6. Step 6: Final answer
    x = 102,568.62

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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.