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Finding the Fourth Proportional to 101,167.79, 139,617.78 and 58,161.04

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Solution

The fourth proportional to 101,167.79, 139,617.78 and 58,161.04 is: 80,265.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,167.79 : 139,617.78 = 58,161.04 : x
  2. Step 2: Convert to fraction form
    101,167.79/139,617.78 = 58,161.04/x
  3. Step 3: Cross multiply
    101,167.79x = 139,617.78 × 58,161.04
  4. Step 4: Simplify right side
    101,167.79x = 8,120,314,720.14
  5. Step 5: Solve for x
    x = 8,120,314,720.14/101,167.79
  6. Step 6: Final answer
    x = 80,265.82

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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.