Home / 204,036.90-305,909.55-91,625.10

Finding the Fourth Proportional to 204,036.90, 305,909.55 and 91,625.10

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Solution

The fourth proportional to 204,036.90, 305,909.55 and 91,625.10 is: 137,372.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    204,036.90 : 305,909.55 = 91,625.10 : x
  2. Step 2: Convert to fraction form
    204,036.90/305,909.55 = 91,625.10/x
  3. Step 3: Cross multiply
    204,036.90x = 305,909.55 × 91,625.10
  4. Step 4: Simplify right side
    204,036.90x = 28,028,993,109.71
  5. Step 5: Solve for x
    x = 28,028,993,109.71/204,036.90
  6. Step 6: Final answer
    x = 137,372.18

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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.