Home / 131,474.20-197,211.30-90,002.20

Finding the Fourth Proportional to 131,474.20, 197,211.30 and 90,002.20

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Solution

The fourth proportional to 131,474.20, 197,211.30 and 90,002.20 is: 135,003.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,474.20 : 197,211.30 = 90,002.20 : x
  2. Step 2: Convert to fraction form
    131,474.20/197,211.30 = 90,002.20/x
  3. Step 3: Cross multiply
    131,474.20x = 197,211.30 × 90,002.20
  4. Step 4: Simplify right side
    131,474.20x = 17,749,450,864.86
  5. Step 5: Solve for x
    x = 17,749,450,864.86/131,474.20
  6. Step 6: Final answer
    x = 135,003.30

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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.