Home / 200,731.78-301,214.28-89,923.78

Finding the Fourth Proportional to 200,731.78, 301,214.28 and 89,923.78

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Solution

The fourth proportional to 200,731.78, 301,214.28 and 89,923.78 is: 134,937.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    200,731.78 : 301,214.28 = 89,923.78 : x
  2. Step 2: Convert to fraction form
    200,731.78/301,214.28 = 89,923.78/x
  3. Step 3: Cross multiply
    200,731.78x = 301,214.28 × 89,923.78
  4. Step 4: Simplify right side
    200,731.78x = 27,086,326,647.58
  5. Step 5: Solve for x
    x = 27,086,326,647.58/200,731.78
  6. Step 6: Final answer
    x = 134,937.91

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.