Home / 202,100.24-278,895.48-117,231.68

Finding the Fourth Proportional to 202,100.24, 278,895.48 and 117,231.68

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Solution

The fourth proportional to 202,100.24, 278,895.48 and 117,231.68 is: 161,778.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,100.24 : 278,895.48 = 117,231.68 : x
  2. Step 2: Convert to fraction form
    202,100.24/278,895.48 = 117,231.68/x
  3. Step 3: Cross multiply
    202,100.24x = 278,895.48 × 117,231.68
  4. Step 4: Simplify right side
    202,100.24x = 32,695,385,664.81
  5. Step 5: Solve for x
    x = 32,695,385,664.81/202,100.24
  6. Step 6: Final answer
    x = 161,778.06

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.