Home / 245,857.72-339,294.11-136,961.93

Finding the Fourth Proportional to 245,857.72, 339,294.11 and 136,961.93

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Solution

The fourth proportional to 245,857.72, 339,294.11 and 136,961.93 is: 189,013.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,857.72 : 339,294.11 = 136,961.93 : x
  2. Step 2: Convert to fraction form
    245,857.72/339,294.11 = 136,961.93/x
  3. Step 3: Cross multiply
    245,857.72x = 339,294.11 × 136,961.93
  4. Step 4: Simplify right side
    245,857.72x = 46,470,376,143.23
  5. Step 5: Solve for x
    x = 46,470,376,143.23/245,857.72
  6. Step 6: Final answer
    x = 189,013.29

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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.