Home / 141,939.54-212,382-89,101.62

Finding the Fourth Proportional to 141,939.54, 212,382 and 89,101.62

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Solution

The fourth proportional to 141,939.54, 212,382 and 89,101.62 is: 133,321.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,939.54 : 212,382 = 89,101.62 : x
  2. Step 2: Convert to fraction form
    141,939.54/212,382 = 89,101.62/x
  3. Step 3: Cross multiply
    141,939.54x = 212,382 × 89,101.62
  4. Step 4: Simplify right side
    141,939.54x = 18,923,580,258.84
  5. Step 5: Solve for x
    x = 18,923,580,258.84/141,939.54
  6. Step 6: Final answer
    x = 133,321.41

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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.