Home / 142,949.53-197,279.31-82,531.09

Finding the Fourth Proportional to 142,949.53, 197,279.31 and 82,531.09

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Solution

The fourth proportional to 142,949.53, 197,279.31 and 82,531.09 is: 113,898.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,949.53 : 197,279.31 = 82,531.09 : x
  2. Step 2: Convert to fraction form
    142,949.53/197,279.31 = 82,531.09/x
  3. Step 3: Cross multiply
    142,949.53x = 197,279.31 × 82,531.09
  4. Step 4: Simplify right side
    142,949.53x = 16,281,676,488.75
  5. Step 5: Solve for x
    x = 16,281,676,488.75/142,949.53
  6. Step 6: Final answer
    x = 113,898.08

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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.