Home / 134,297.72-200,949.65-81,020.58

Finding the Fourth Proportional to 134,297.72, 200,949.65 and 81,020.58

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Solution

The fourth proportional to 134,297.72, 200,949.65 and 81,020.58 is: 121,231.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,297.72 : 200,949.65 = 81,020.58 : x
  2. Step 2: Convert to fraction form
    134,297.72/200,949.65 = 81,020.58/x
  3. Step 3: Cross multiply
    134,297.72x = 200,949.65 × 81,020.58
  4. Step 4: Simplify right side
    134,297.72x = 16,281,056,788.69
  5. Step 5: Solve for x
    x = 16,281,056,788.69/134,297.72
  6. Step 6: Final answer
    x = 121,231.08

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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.