Home / 135,916.06-204,206.38-128,362.54

Finding the Fourth Proportional to 135,916.06, 204,206.38 and 128,362.54

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Solution

The fourth proportional to 135,916.06, 204,206.38 and 128,362.54 is: 192,857.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,916.06 : 204,206.38 = 128,362.54 : x
  2. Step 2: Convert to fraction form
    135,916.06/204,206.38 = 128,362.54/x
  3. Step 3: Cross multiply
    135,916.06x = 204,206.38 × 128,362.54
  4. Step 4: Simplify right side
    135,916.06x = 26,212,449,621.01
  5. Step 5: Solve for x
    x = 26,212,449,621.01/135,916.06
  6. Step 6: Final answer
    x = 192,857.63

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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.