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Finding the Fourth Proportional to 111,466.60, 166,811.10 and 76,474.60

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Solution

The fourth proportional to 111,466.60, 166,811.10 and 76,474.60 is: 114,445.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,466.60 : 166,811.10 = 76,474.60 : x
  2. Step 2: Convert to fraction form
    111,466.60/166,811.10 = 76,474.60/x
  3. Step 3: Cross multiply
    111,466.60x = 166,811.10 × 76,474.60
  4. Step 4: Simplify right side
    111,466.60x = 12,756,812,148.06
  5. Step 5: Solve for x
    x = 12,756,812,148.06/111,466.60
  6. Step 6: Final answer
    x = 114,445.15

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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.