Home / 142,979.31-214,329.50-68,079.33

Finding the Fourth Proportional to 142,979.31, 214,329.50 and 68,079.33

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Solution

The fourth proportional to 142,979.31, 214,329.50 and 68,079.33 is: 102,052.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,979.31 : 214,329.50 = 68,079.33 : x
  2. Step 2: Convert to fraction form
    142,979.31/214,329.50 = 68,079.33/x
  3. Step 3: Cross multiply
    142,979.31x = 214,329.50 × 68,079.33
  4. Step 4: Simplify right side
    142,979.31x = 14,591,407,857.79
  5. Step 5: Solve for x
    x = 14,591,407,857.79/142,979.31
  6. Step 6: Final answer
    x = 102,052.59

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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.