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Finding the Fourth Proportional to 109,750.60, 164,609.70 and 30,872.80

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Solution

The fourth proportional to 109,750.60, 164,609.70 and 30,872.80 is: 46,304.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,750.60 : 164,609.70 = 30,872.80 : x
  2. Step 2: Convert to fraction form
    109,750.60/164,609.70 = 30,872.80/x
  3. Step 3: Cross multiply
    109,750.60x = 164,609.70 × 30,872.80
  4. Step 4: Simplify right side
    109,750.60x = 5,081,962,346.16
  5. Step 5: Solve for x
    x = 5,081,962,346.16/109,750.60
  6. Step 6: Final answer
    x = 46,304.64

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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.