Home / 204,032.90-305,903.55-91,621.10

Finding the Fourth Proportional to 204,032.90, 305,903.55 and 91,621.10

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Solution

The fourth proportional to 204,032.90, 305,903.55 and 91,621.10 is: 137,366.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    204,032.90 : 305,903.55 = 91,621.10 : x
  2. Step 2: Convert to fraction form
    204,032.90/305,903.55 = 91,621.10/x
  3. Step 3: Cross multiply
    204,032.90x = 305,903.55 × 91,621.10
  4. Step 4: Simplify right side
    204,032.90x = 28,027,219,744.91
  5. Step 5: Solve for x
    x = 28,027,219,744.91/204,032.90
  6. Step 6: Final answer
    x = 137,366.18

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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.