Home / 231,913.64-347,872.86-74,138.60

Finding the Fourth Proportional to 231,913.64, 347,872.86 and 74,138.60

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Solution

The fourth proportional to 231,913.64, 347,872.86 and 74,138.60 is: 111,208.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    231,913.64 : 347,872.86 = 74,138.60 : x
  2. Step 2: Convert to fraction form
    231,913.64/347,872.86 = 74,138.60/x
  3. Step 3: Cross multiply
    231,913.64x = 347,872.86 × 74,138.60
  4. Step 4: Simplify right side
    231,913.64x = 25,790,806,818.40
  5. Step 5: Solve for x
    x = 25,790,806,818.40/231,913.64
  6. Step 6: Final answer
    x = 111,208.67

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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.