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Finding the Fourth Proportional to 109,902.60, 164,853.90 and 108,736.20

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Solution

The fourth proportional to 109,902.60, 164,853.90 and 108,736.20 is: 163,104.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,902.60 : 164,853.90 = 108,736.20 : x
  2. Step 2: Convert to fraction form
    109,902.60/164,853.90 = 108,736.20/x
  3. Step 3: Cross multiply
    109,902.60x = 164,853.90 × 108,736.20
  4. Step 4: Simplify right side
    109,902.60x = 17,925,586,641.18
  5. Step 5: Solve for x
    x = 17,925,586,641.18/109,902.60
  6. Step 6: Final answer
    x = 163,104.30

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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.