Home / 235,105.34-324,427.38-138,313.04

Finding the Fourth Proportional to 235,105.34, 324,427.38 and 138,313.04

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Solution

The fourth proportional to 235,105.34, 324,427.38 and 138,313.04 is: 190,861.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    235,105.34 : 324,427.38 = 138,313.04 : x
  2. Step 2: Convert to fraction form
    235,105.34/324,427.38 = 138,313.04/x
  3. Step 3: Cross multiply
    235,105.34x = 324,427.38 × 138,313.04
  4. Step 4: Simplify right side
    235,105.34x = 44,872,535,046.22
  5. Step 5: Solve for x
    x = 44,872,535,046.22/235,105.34
  6. Step 6: Final answer
    x = 190,861.41

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1.5x scale

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.