Home / 120,741.68-181,112.51-45,861.64

Finding the Fourth Proportional to 120,741.68, 181,112.51 and 45,861.64

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Solution

The fourth proportional to 120,741.68, 181,112.51 and 45,861.64 is: 68,792.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,741.68 : 181,112.51 = 45,861.64 : x
  2. Step 2: Convert to fraction form
    120,741.68/181,112.51 = 45,861.64/x
  3. Step 3: Cross multiply
    120,741.68x = 181,112.51 × 45,861.64
  4. Step 4: Simplify right side
    120,741.68x = 8,306,116,733.12
  5. Step 5: Solve for x
    x = 8,306,116,733.12/120,741.68
  6. Step 6: Final answer
    x = 68,792.46

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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.