Home / 108,721.52-150,072.54-68,502.68

Finding the Fourth Proportional to 108,721.52, 150,072.54 and 68,502.68

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Solution

The fourth proportional to 108,721.52, 150,072.54 and 68,502.68 is: 94,556.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,721.52 : 150,072.54 = 68,502.68 : x
  2. Step 2: Convert to fraction form
    108,721.52/150,072.54 = 68,502.68/x
  3. Step 3: Cross multiply
    108,721.52x = 150,072.54 × 68,502.68
  4. Step 4: Simplify right side
    108,721.52x = 10,280,371,184.41
  5. Step 5: Solve for x
    x = 10,280,371,184.41/108,721.52
  6. Step 6: Final answer
    x = 94,556.91

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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.