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Finding the Fourth Proportional to 165,258, 247,889.88 and 66,762

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Solution

The fourth proportional to 165,258, 247,889.88 and 66,762 is: 100,144.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,258 : 247,889.88 = 66,762 : x
  2. Step 2: Convert to fraction form
    165,258/247,889.88 = 66,762/x
  3. Step 3: Cross multiply
    165,258x = 247,889.88 × 66,762
  4. Step 4: Simplify right side
    165,258x = 16,549,624,168.56
  5. Step 5: Solve for x
    x = 16,549,624,168.56/165,258
  6. Step 6: Final answer
    x = 100,144.16

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.