Home / 109,940.41-151,721.49-64,617.75

Finding the Fourth Proportional to 109,940.41, 151,721.49 and 64,617.75

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Solution

The fourth proportional to 109,940.41, 151,721.49 and 64,617.75 is: 89,174.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,940.41 : 151,721.49 = 64,617.75 : x
  2. Step 2: Convert to fraction form
    109,940.41/151,721.49 = 64,617.75/x
  3. Step 3: Cross multiply
    109,940.41x = 151,721.49 × 64,617.75
  4. Step 4: Simplify right side
    109,940.41x = 9,803,901,310.45
  5. Step 5: Solve for x
    x = 9,803,901,310.45/109,940.41
  6. Step 6: Final answer
    x = 89,174.68

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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.