Home / 122,905.20-184,358.37-42,942.81

Finding the Fourth Proportional to 122,905.20, 184,358.37 and 42,942.81

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Solution

The fourth proportional to 122,905.20, 184,358.37 and 42,942.81 is: 64,414.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,905.20 : 184,358.37 = 42,942.81 : x
  2. Step 2: Convert to fraction form
    122,905.20/184,358.37 = 42,942.81/x
  3. Step 3: Cross multiply
    122,905.20x = 184,358.37 × 42,942.81
  4. Step 4: Simplify right side
    122,905.20x = 7,916,866,454.82
  5. Step 5: Solve for x
    x = 7,916,866,454.82/122,905.20
  6. Step 6: Final answer
    x = 64,414.41

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.