Home / 245,813.19-339,222.76-136,916.65

Finding the Fourth Proportional to 245,813.19, 339,222.76 and 136,916.65

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Solution

The fourth proportional to 245,813.19, 339,222.76 and 136,916.65 is: 188,945.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,813.19 : 339,222.76 = 136,916.65 : x
  2. Step 2: Convert to fraction form
    245,813.19/339,222.76 = 136,916.65/x
  3. Step 3: Cross multiply
    245,813.19x = 339,222.76 × 136,916.65
  4. Step 4: Simplify right side
    245,813.19x = 46,445,245,323.83
  5. Step 5: Solve for x
    x = 46,445,245,323.83/245,813.19
  6. Step 6: Final answer
    x = 188,945.29

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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.