Home / 136,212.78-204,256.08-75,382.14

Finding the Fourth Proportional to 136,212.78, 204,256.08 and 75,382.14

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Solution

The fourth proportional to 136,212.78, 204,256.08 and 75,382.14 is: 113,038.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,212.78 : 204,256.08 = 75,382.14 : x
  2. Step 2: Convert to fraction form
    136,212.78/204,256.08 = 75,382.14/x
  3. Step 3: Cross multiply
    136,212.78x = 204,256.08 × 75,382.14
  4. Step 4: Simplify right side
    136,212.78x = 15,397,260,418.41
  5. Step 5: Solve for x
    x = 15,397,260,418.41/136,212.78
  6. Step 6: Final answer
    x = 113,038.30

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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.