Home / 101,291.62-139,826.49-69,623.86

Finding the Fourth Proportional to 101,291.62, 139,826.49 and 69,623.86

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Solution

The fourth proportional to 101,291.62, 139,826.49 and 69,623.86 is: 96,111.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,291.62 : 139,826.49 = 69,623.86 : x
  2. Step 2: Convert to fraction form
    101,291.62/139,826.49 = 69,623.86/x
  3. Step 3: Cross multiply
    101,291.62x = 139,826.49 × 69,623.86
  4. Step 4: Simplify right side
    101,291.62x = 9,735,259,964.05
  5. Step 5: Solve for x
    x = 9,735,259,964.05/101,291.62
  6. Step 6: Final answer
    x = 96,111.21

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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.