Home / 113,485.08-156,493.26-75,231.32

Finding the Fourth Proportional to 113,485.08, 156,493.26 and 75,231.32

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Solution

The fourth proportional to 113,485.08, 156,493.26 and 75,231.32 is: 103,742.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,485.08 : 156,493.26 = 75,231.32 : x
  2. Step 2: Convert to fraction form
    113,485.08/156,493.26 = 75,231.32/x
  3. Step 3: Cross multiply
    113,485.08x = 156,493.26 × 75,231.32
  4. Step 4: Simplify right side
    113,485.08x = 11,773,194,520.90
  5. Step 5: Solve for x
    x = 11,773,194,520.90/113,485.08
  6. Step 6: Final answer
    x = 103,742.22

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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.