Home / 100,162.14-138,230.42-57,723.41

Finding the Fourth Proportional to 100,162.14, 138,230.42 and 57,723.41

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Solution

The fourth proportional to 100,162.14, 138,230.42 and 57,723.41 is: 79,662.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,162.14 : 138,230.42 = 57,723.41 : x
  2. Step 2: Convert to fraction form
    100,162.14/138,230.42 = 57,723.41/x
  3. Step 3: Cross multiply
    100,162.14x = 138,230.42 × 57,723.41
  4. Step 4: Simplify right side
    100,162.14x = 7,979,130,228.36
  5. Step 5: Solve for x
    x = 7,979,130,228.36/100,162.14
  6. Step 6: Final answer
    x = 79,662.14

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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.