Home / 198,074.36-273,342.75-107,430.30

Finding the Fourth Proportional to 198,074.36, 273,342.75 and 107,430.30

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Solution

The fourth proportional to 198,074.36, 273,342.75 and 107,430.30 is: 148,253.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,074.36 : 273,342.75 = 107,430.30 : x
  2. Step 2: Convert to fraction form
    198,074.36/273,342.75 = 107,430.30/x
  3. Step 3: Cross multiply
    198,074.36x = 273,342.75 × 107,430.30
  4. Step 4: Simplify right side
    198,074.36x = 29,365,293,635.33
  5. Step 5: Solve for x
    x = 29,365,293,635.33/198,074.36
  6. Step 6: Final answer
    x = 148,253.89

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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.