Home / 142,979.81-214,330.25-68,079.83

Finding the Fourth Proportional to 142,979.81, 214,330.25 and 68,079.83

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Solution

The fourth proportional to 142,979.81, 214,330.25 and 68,079.83 is: 102,053.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,979.81 : 214,330.25 = 68,079.83 : x
  2. Step 2: Convert to fraction form
    142,979.81/214,330.25 = 68,079.83/x
  3. Step 3: Cross multiply
    142,979.81x = 214,330.25 × 68,079.83
  4. Step 4: Simplify right side
    142,979.81x = 14,591,565,912.21
  5. Step 5: Solve for x
    x = 14,591,565,912.21/142,979.81
  6. Step 6: Final answer
    x = 102,053.33

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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.