Home / 121,266.82-181,891.75-45,350.91

Finding the Fourth Proportional to 121,266.82, 181,891.75 and 45,350.91

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Solution

The fourth proportional to 121,266.82, 181,891.75 and 45,350.91 is: 68,023.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,266.82 : 181,891.75 = 45,350.91 : x
  2. Step 2: Convert to fraction form
    121,266.82/181,891.75 = 45,350.91/x
  3. Step 3: Cross multiply
    121,266.82x = 181,891.75 × 45,350.91
  4. Step 4: Simplify right side
    121,266.82x = 8,248,956,383.99
  5. Step 5: Solve for x
    x = 8,248,956,383.99/121,266.82
  6. Step 6: Final answer
    x = 68,023.19

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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.