Home / 198,612.18-274,081.58-107,970.42

Finding the Fourth Proportional to 198,612.18, 274,081.58 and 107,970.42

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Solution

The fourth proportional to 198,612.18, 274,081.58 and 107,970.42 is: 148,997.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,612.18 : 274,081.58 = 107,970.42 : x
  2. Step 2: Convert to fraction form
    198,612.18/274,081.58 = 107,970.42/x
  3. Step 3: Cross multiply
    198,612.18x = 274,081.58 × 107,970.42
  4. Step 4: Simplify right side
    198,612.18x = 29,592,704,199.71
  5. Step 5: Solve for x
    x = 29,592,704,199.71/198,612.18
  6. Step 6: Final answer
    x = 148,997.43

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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.