Home / 113,721.17-156,885.26-68,372.91

Finding the Fourth Proportional to 113,721.17, 156,885.26 and 68,372.91

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Solution

The fourth proportional to 113,721.17, 156,885.26 and 68,372.91 is: 94,324.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,721.17 : 156,885.26 = 68,372.91 : x
  2. Step 2: Convert to fraction form
    113,721.17/156,885.26 = 68,372.91/x
  3. Step 3: Cross multiply
    113,721.17x = 156,885.26 × 68,372.91
  4. Step 4: Simplify right side
    113,721.17x = 10,726,701,420.44
  5. Step 5: Solve for x
    x = 10,726,701,420.44/113,721.17
  6. Step 6: Final answer
    x = 94,324.58

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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.