Home / 200,763.45-277,115.60-129,143.48

Finding the Fourth Proportional to 200,763.45, 277,115.60 and 129,143.48

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Solution

The fourth proportional to 200,763.45, 277,115.60 and 129,143.48 is: 178,257.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    200,763.45 : 277,115.60 = 129,143.48 : x
  2. Step 2: Convert to fraction form
    200,763.45/277,115.60 = 129,143.48/x
  3. Step 3: Cross multiply
    200,763.45x = 277,115.60 × 129,143.48
  4. Step 4: Simplify right side
    200,763.45x = 35,787,671,560.71
  5. Step 5: Solve for x
    x = 35,787,671,560.71/200,763.45
  6. Step 6: Final answer
    x = 178,257.90

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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.