Home / 198,430.76-273,835.08-107,788.12

Finding the Fourth Proportional to 198,430.76, 273,835.08 and 107,788.12

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Solution

The fourth proportional to 198,430.76, 273,835.08 and 107,788.12 is: 148,747.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,430.76 : 273,835.08 = 107,788.12 : x
  2. Step 2: Convert to fraction form
    198,430.76/273,835.08 = 107,788.12/x
  3. Step 3: Cross multiply
    198,430.76x = 273,835.08 × 107,788.12
  4. Step 4: Simplify right side
    198,430.76x = 29,516,167,778.66
  5. Step 5: Solve for x
    x = 29,516,167,778.66/198,430.76
  6. Step 6: Final answer
    x = 148,747.94

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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.