Home / 136,338.12-204,408.76-57,409.28

Finding the Fourth Proportional to 136,338.12, 204,408.76 and 57,409.28

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Solution

The fourth proportional to 136,338.12, 204,408.76 and 57,409.28 is: 86,072.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,338.12 : 204,408.76 = 57,409.28 : x
  2. Step 2: Convert to fraction form
    136,338.12/204,408.76 = 57,409.28/x
  3. Step 3: Cross multiply
    136,338.12x = 204,408.76 × 57,409.28
  4. Step 4: Simplify right side
    136,338.12x = 11,734,959,737.29
  5. Step 5: Solve for x
    x = 11,734,959,737.29/136,338.12
  6. Step 6: Final answer
    x = 86,072.48

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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.