Home / 142,622.55-196,609.46-108,571.68

Finding the Fourth Proportional to 142,622.55, 196,609.46 and 108,571.68

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Solution

The fourth proportional to 142,622.55, 196,609.46 and 108,571.68 is: 149,669.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,622.55 : 196,609.46 = 108,571.68 : x
  2. Step 2: Convert to fraction form
    142,622.55/196,609.46 = 108,571.68/x
  3. Step 3: Cross multiply
    142,622.55x = 196,609.46 × 108,571.68
  4. Step 4: Simplify right side
    142,622.55x = 21,346,218,833.23
  5. Step 5: Solve for x
    x = 21,346,218,833.23/142,622.55
  6. Step 6: Final answer
    x = 149,669.31

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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.