Home / 143,077.50-214,335.67-82,979.73

Finding the Fourth Proportional to 143,077.50, 214,335.67 and 82,979.73

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Solution

The fourth proportional to 143,077.50, 214,335.67 and 82,979.73 is: 124,306.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,077.50 : 214,335.67 = 82,979.73 : x
  2. Step 2: Convert to fraction form
    143,077.50/214,335.67 = 82,979.73/x
  3. Step 3: Cross multiply
    143,077.50x = 214,335.67 × 82,979.73
  4. Step 4: Simplify right side
    143,077.50x = 17,785,515,325.94
  5. Step 5: Solve for x
    x = 17,785,515,325.94/143,077.50
  6. Step 6: Final answer
    x = 124,306.86

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1.5x scale

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.