Home / 101,856.22-140,558.90-56,534.09

Finding the Fourth Proportional to 101,856.22, 140,558.90 and 56,534.09

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Solution

The fourth proportional to 101,856.22, 140,558.90 and 56,534.09 is: 78,015.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,856.22 : 140,558.90 = 56,534.09 : x
  2. Step 2: Convert to fraction form
    101,856.22/140,558.90 = 56,534.09/x
  3. Step 3: Cross multiply
    101,856.22x = 140,558.90 × 56,534.09
  4. Step 4: Simplify right side
    101,856.22x = 7,946,368,517.44
  5. Step 5: Solve for x
    x = 7,946,368,517.44/101,856.22
  6. Step 6: Final answer
    x = 78,015.55

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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.