Home / 109,490.20-164,235.30-108,453.40

Finding the Fourth Proportional to 109,490.20, 164,235.30 and 108,453.40

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Solution

The fourth proportional to 109,490.20, 164,235.30 and 108,453.40 is: 162,680.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,490.20 : 164,235.30 = 108,453.40 : x
  2. Step 2: Convert to fraction form
    109,490.20/164,235.30 = 108,453.40/x
  3. Step 3: Cross multiply
    109,490.20x = 164,235.30 × 108,453.40
  4. Step 4: Simplify right side
    109,490.20x = 17,811,876,685.02
  5. Step 5: Solve for x
    x = 17,811,876,685.02/109,490.20
  6. Step 6: Final answer
    x = 162,680.10

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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.