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Finding the Fourth Proportional to 113,704.56, 156,880.80 and 73,420.02

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Solution

The fourth proportional to 113,704.56, 156,880.80 and 73,420.02 is: 101,299.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,704.56 : 156,880.80 = 73,420.02 : x
  2. Step 2: Convert to fraction form
    113,704.56/156,880.80 = 73,420.02/x
  3. Step 3: Cross multiply
    113,704.56x = 156,880.80 × 73,420.02
  4. Step 4: Simplify right side
    113,704.56x = 11,518,191,473.62
  5. Step 5: Solve for x
    x = 11,518,191,473.62/113,704.56
  6. Step 6: Final answer
    x = 101,299.29

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1.5x scale

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.