Home / 204,673.18-307,042.60-86,361.95

Finding the Fourth Proportional to 204,673.18, 307,042.60 and 86,361.95

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Solution

The fourth proportional to 204,673.18, 307,042.60 and 86,361.95 is: 129,556.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    204,673.18 : 307,042.60 = 86,361.95 : x
  2. Step 2: Convert to fraction form
    204,673.18/307,042.60 = 86,361.95/x
  3. Step 3: Cross multiply
    204,673.18x = 307,042.60 × 86,361.95
  4. Step 4: Simplify right side
    204,673.18x = 26,516,796,655.59
  5. Step 5: Solve for x
    x = 26,516,796,655.59/204,673.18
  6. Step 6: Final answer
    x = 129,556.77

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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.