Home / 142,999.23-197,367.66-82,579.71

Finding the Fourth Proportional to 142,999.23, 197,367.66 and 82,579.71

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Solution

The fourth proportional to 142,999.23, 197,367.66 and 82,579.71 is: 113,976.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,999.23 : 197,367.66 = 82,579.71 : x
  2. Step 2: Convert to fraction form
    142,999.23/197,367.66 = 82,579.71/x
  3. Step 3: Cross multiply
    142,999.23x = 197,367.66 × 82,579.71
  4. Step 4: Simplify right side
    142,999.23x = 16,298,564,126.18
  5. Step 5: Solve for x
    x = 16,298,564,126.18/142,999.23
  6. Step 6: Final answer
    x = 113,976.59

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.