Home / 198,654.50-298,169.01-72,416.75

Finding the Fourth Proportional to 198,654.50, 298,169.01 and 72,416.75

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Solution

The fourth proportional to 198,654.50, 298,169.01 and 72,416.75 is: 108,693.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,654.50 : 298,169.01 = 72,416.75 : x
  2. Step 2: Convert to fraction form
    198,654.50/298,169.01 = 72,416.75/x
  3. Step 3: Cross multiply
    198,654.50x = 298,169.01 × 72,416.75
  4. Step 4: Simplify right side
    198,654.50x = 21,592,430,654.92
  5. Step 5: Solve for x
    x = 21,592,430,654.92/198,654.50
  6. Step 6: Final answer
    x = 108,693.39

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1.5x scale

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.