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Finding the Fourth Proportional to 101,195.64, 139,642.11 and 58,757.31

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Solution

The fourth proportional to 101,195.64, 139,642.11 and 58,757.31 is: 81,080.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,195.64 : 139,642.11 = 58,757.31 : x
  2. Step 2: Convert to fraction form
    101,195.64/139,642.11 = 58,757.31/x
  3. Step 3: Cross multiply
    101,195.64x = 139,642.11 × 58,757.31
  4. Step 4: Simplify right side
    101,195.64x = 8,204,994,746.32
  5. Step 5: Solve for x
    x = 8,204,994,746.32/101,195.64
  6. Step 6: Final answer
    x = 81,080.52

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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.