Home / 205,143.35-282,874.61-133,390.31

Finding the Fourth Proportional to 205,143.35, 282,874.61 and 133,390.31

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Solution

The fourth proportional to 205,143.35, 282,874.61 and 133,390.31 is: 183,933.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    205,143.35 : 282,874.61 = 133,390.31 : x
  2. Step 2: Convert to fraction form
    205,143.35/282,874.61 = 133,390.31/x
  3. Step 3: Cross multiply
    205,143.35x = 282,874.61 × 133,390.31
  4. Step 4: Simplify right side
    205,143.35x = 37,732,730,838.13
  5. Step 5: Solve for x
    x = 37,732,730,838.13/205,143.35
  6. Step 6: Final answer
    x = 183,933.49

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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.