Home / 113,729.56-156,915.30-73,445.02

Finding the Fourth Proportional to 113,729.56, 156,915.30 and 73,445.02

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Solution

The fourth proportional to 113,729.56, 156,915.30 and 73,445.02 is: 101,333.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,729.56 : 156,915.30 = 73,445.02 : x
  2. Step 2: Convert to fraction form
    113,729.56/156,915.30 = 73,445.02/x
  3. Step 3: Cross multiply
    113,729.56x = 156,915.30 × 73,445.02
  4. Step 4: Simplify right side
    113,729.56x = 11,524,647,346.81
  5. Step 5: Solve for x
    x = 11,524,647,346.81/113,729.56
  6. Step 6: Final answer
    x = 101,333.79

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.