Home / 100,314.18-150,496.38-70,789.68

Finding the Fourth Proportional to 100,314.18, 150,496.38 and 70,789.68

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Solution

The fourth proportional to 100,314.18, 150,496.38 and 70,789.68 is: 106,202.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,314.18 : 150,496.38 = 70,789.68 : x
  2. Step 2: Convert to fraction form
    100,314.18/150,496.38 = 70,789.68/x
  3. Step 3: Cross multiply
    100,314.18x = 150,496.38 × 70,789.68
  4. Step 4: Simplify right side
    100,314.18x = 10,653,590,581.36
  5. Step 5: Solve for x
    x = 10,653,590,581.36/100,314.18
  6. Step 6: Final answer
    x = 106,202.24

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.