Home / 129,618.40-194,427.60-116,485.60

Finding the Fourth Proportional to 129,618.40, 194,427.60 and 116,485.60

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Solution

The fourth proportional to 129,618.40, 194,427.60 and 116,485.60 is: 174,728.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,618.40 : 194,427.60 = 116,485.60 : x
  2. Step 2: Convert to fraction form
    129,618.40/194,427.60 = 116,485.60/x
  3. Step 3: Cross multiply
    129,618.40x = 194,427.60 × 116,485.60
  4. Step 4: Simplify right side
    129,618.40x = 22,648,015,642.56
  5. Step 5: Solve for x
    x = 22,648,015,642.56/129,618.40
  6. Step 6: Final answer
    x = 174,728.40

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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.