Home / 101,099.67-139,516.58-55,778.02

Finding the Fourth Proportional to 101,099.67, 139,516.58 and 55,778.02

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Solution

The fourth proportional to 101,099.67, 139,516.58 and 55,778.02 is: 76,973.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,099.67 : 139,516.58 = 55,778.02 : x
  2. Step 2: Convert to fraction form
    101,099.67/139,516.58 = 55,778.02/x
  3. Step 3: Cross multiply
    101,099.67x = 139,516.58 × 55,778.02
  4. Step 4: Simplify right side
    101,099.67x = 7,781,958,589.57
  5. Step 5: Solve for x
    x = 7,781,958,589.57/101,099.67
  6. Step 6: Final answer
    x = 76,973.14

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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.