Home / 204,907.40-307,287.24-86,587.95

Finding the Fourth Proportional to 204,907.40, 307,287.24 and 86,587.95

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Solution

The fourth proportional to 204,907.40, 307,287.24 and 86,587.95 is: 129,850.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    204,907.40 : 307,287.24 = 86,587.95 : x
  2. Step 2: Convert to fraction form
    204,907.40/307,287.24 = 86,587.95/x
  3. Step 3: Cross multiply
    204,907.40x = 307,287.24 × 86,587.95
  4. Step 4: Simplify right side
    204,907.40x = 26,607,372,172.76
  5. Step 5: Solve for x
    x = 26,607,372,172.76/204,907.40
  6. Step 6: Final answer
    x = 129,850.71

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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.