Home / 109,522.20-164,348.10-72,190.20

Finding the Fourth Proportional to 109,522.20, 164,348.10 and 72,190.20

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Solution

The fourth proportional to 109,522.20, 164,348.10 and 72,190.20 is: 108,328.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,522.20 : 164,348.10 = 72,190.20 : x
  2. Step 2: Convert to fraction form
    109,522.20/164,348.10 = 72,190.20/x
  3. Step 3: Cross multiply
    109,522.20x = 164,348.10 × 72,190.20
  4. Step 4: Simplify right side
    109,522.20x = 11,864,322,208.62
  5. Step 5: Solve for x
    x = 11,864,322,208.62/109,522.20
  6. Step 6: Final answer
    x = 108,328.01

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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.