Home / 198,612.15-298,045.80-109,929.30

Finding the Fourth Proportional to 198,612.15, 298,045.80 and 109,929.30

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Solution

The fourth proportional to 198,612.15, 298,045.80 and 109,929.30 is: 164,964.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,612.15 : 298,045.80 = 109,929.30 : x
  2. Step 2: Convert to fraction form
    198,612.15/298,045.80 = 109,929.30/x
  3. Step 3: Cross multiply
    198,612.15x = 298,045.80 × 109,929.30
  4. Step 4: Simplify right side
    198,612.15x = 32,763,966,161.94
  5. Step 5: Solve for x
    x = 32,763,966,161.94/198,612.15
  6. Step 6: Final answer
    x = 164,964.56

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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.