Home / 120,917.43-181,126.67-70,845.46

Finding the Fourth Proportional to 120,917.43, 181,126.67 and 70,845.46

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Solution

The fourth proportional to 120,917.43, 181,126.67 and 70,845.46 is: 106,122.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,917.43 : 181,126.67 = 70,845.46 : x
  2. Step 2: Convert to fraction form
    120,917.43/181,126.67 = 70,845.46/x
  3. Step 3: Cross multiply
    120,917.43x = 181,126.67 × 70,845.46
  4. Step 4: Simplify right side
    120,917.43x = 12,832,001,447.37
  5. Step 5: Solve for x
    x = 12,832,001,447.37/120,917.43
  6. Step 6: Final answer
    x = 106,122.02

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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.