Home / 201,619.72-278,272.02-116,744.68

Finding the Fourth Proportional to 201,619.72, 278,272.02 and 116,744.68

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Solution

The fourth proportional to 201,619.72, 278,272.02 and 116,744.68 is: 161,128.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,619.72 : 278,272.02 = 116,744.68 : x
  2. Step 2: Convert to fraction form
    201,619.72/278,272.02 = 116,744.68/x
  3. Step 3: Cross multiply
    201,619.72x = 278,272.02 × 116,744.68
  4. Step 4: Simplify right side
    201,619.72x = 32,486,777,927.85
  5. Step 5: Solve for x
    x = 32,486,777,927.85/201,619.72
  6. Step 6: Final answer
    x = 161,128.97

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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.