Home / 245,916.98-339,382.80-137,028.54

Finding the Fourth Proportional to 245,916.98, 339,382.80 and 137,028.54

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Solution

The fourth proportional to 245,916.98, 339,382.80 and 137,028.54 is: 189,109.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,916.98 : 339,382.80 = 137,028.54 : x
  2. Step 2: Convert to fraction form
    245,916.98/339,382.80 = 137,028.54/x
  3. Step 3: Cross multiply
    245,916.98x = 339,382.80 × 137,028.54
  4. Step 4: Simplify right side
    245,916.98x = 46,505,129,585.11
  5. Step 5: Solve for x
    x = 46,505,129,585.11/245,916.98
  6. Step 6: Final answer
    x = 189,109.07

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.