Home / 122,105.10-183,157.65-120,938.70

Finding the Fourth Proportional to 122,105.10, 183,157.65 and 120,938.70

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Solution

The fourth proportional to 122,105.10, 183,157.65 and 120,938.70 is: 181,408.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,105.10 : 183,157.65 = 120,938.70 : x
  2. Step 2: Convert to fraction form
    122,105.10/183,157.65 = 120,938.70/x
  3. Step 3: Cross multiply
    122,105.10x = 183,157.65 × 120,938.70
  4. Step 4: Simplify right side
    122,105.10x = 22,150,848,086.06
  5. Step 5: Solve for x
    x = 22,150,848,086.06/122,105.10
  6. Step 6: Final answer
    x = 181,408.05

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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.