Home / 198,001.40-297,002.10-135,015.80

Finding the Fourth Proportional to 198,001.40, 297,002.10 and 135,015.80

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Solution

The fourth proportional to 198,001.40, 297,002.10 and 135,015.80 is: 202,523.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,001.40 : 297,002.10 = 135,015.80 : x
  2. Step 2: Convert to fraction form
    198,001.40/297,002.10 = 135,015.80/x
  3. Step 3: Cross multiply
    198,001.40x = 297,002.10 × 135,015.80
  4. Step 4: Simplify right side
    198,001.40x = 40,099,976,133.18
  5. Step 5: Solve for x
    x = 40,099,976,133.18/198,001.40
  6. Step 6: Final answer
    x = 202,523.70

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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.