Home / 131,483.40-197,225.10-109,321.80

Finding the Fourth Proportional to 131,483.40, 197,225.10 and 109,321.80

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Solution

The fourth proportional to 131,483.40, 197,225.10 and 109,321.80 is: 163,982.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,483.40 : 197,225.10 = 109,321.80 : x
  2. Step 2: Convert to fraction form
    131,483.40/197,225.10 = 109,321.80/x
  3. Step 3: Cross multiply
    131,483.40x = 197,225.10 × 109,321.80
  4. Step 4: Simplify right side
    131,483.40x = 21,561,002,937.18
  5. Step 5: Solve for x
    x = 21,561,002,937.18/131,483.40
  6. Step 6: Final answer
    x = 163,982.70

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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.