Home / 145,546.56-217,914.90-74,315.34

Finding the Fourth Proportional to 145,546.56, 217,914.90 and 74,315.34

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Solution

The fourth proportional to 145,546.56, 217,914.90 and 74,315.34 is: 111,266.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,546.56 : 217,914.90 = 74,315.34 : x
  2. Step 2: Convert to fraction form
    145,546.56/217,914.90 = 74,315.34/x
  3. Step 3: Cross multiply
    145,546.56x = 217,914.90 × 74,315.34
  4. Step 4: Simplify right side
    145,546.56x = 16,194,419,884.57
  5. Step 5: Solve for x
    x = 16,194,419,884.57/145,546.56
  6. Step 6: Final answer
    x = 111,266.25

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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.