Home / 243,513.18-336,063.78-136,083.66

Finding the Fourth Proportional to 243,513.18, 336,063.78 and 136,083.66

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Solution

The fourth proportional to 243,513.18, 336,063.78 and 136,083.66 is: 187,804.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,513.18 : 336,063.78 = 136,083.66 : x
  2. Step 2: Convert to fraction form
    243,513.18/336,063.78 = 136,083.66/x
  3. Step 3: Cross multiply
    243,513.18x = 336,063.78 × 136,083.66
  4. Step 4: Simplify right side
    243,513.18x = 45,732,789,175.83
  5. Step 5: Solve for x
    x = 45,732,789,175.83/243,513.18
  6. Step 6: Final answer
    x = 187,804.16

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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.