Home / 120,771.36-181,116.09-45,873.45

Finding the Fourth Proportional to 120,771.36, 181,116.09 and 45,873.45

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Solution

The fourth proportional to 120,771.36, 181,116.09 and 45,873.45 is: 68,794.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,771.36 : 181,116.09 = 45,873.45 : x
  2. Step 2: Convert to fraction form
    120,771.36/181,116.09 = 45,873.45/x
  3. Step 3: Cross multiply
    120,771.36x = 181,116.09 × 45,873.45
  4. Step 4: Simplify right side
    120,771.36x = 8,308,419,898.81
  5. Step 5: Solve for x
    x = 8,308,419,898.81/120,771.36
  6. Step 6: Final answer
    x = 68,794.62

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1.5x scale

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.