Home / 198,688.98-298,092.06-80,445.18

Finding the Fourth Proportional to 198,688.98, 298,092.06 and 80,445.18

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Solution

The fourth proportional to 198,688.98, 298,092.06 and 80,445.18 is: 120,691.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,688.98 : 298,092.06 = 80,445.18 : x
  2. Step 2: Convert to fraction form
    198,688.98/298,092.06 = 80,445.18/x
  3. Step 3: Cross multiply
    198,688.98x = 298,092.06 × 80,445.18
  4. Step 4: Simplify right side
    198,688.98x = 23,980,069,423.27
  5. Step 5: Solve for x
    x = 23,980,069,423.27/198,688.98
  6. Step 6: Final answer
    x = 120,691.49

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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.