Home / 201,820.50-278,512.38-116,986.77

Finding the Fourth Proportional to 201,820.50, 278,512.38 and 116,986.77

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Solution

The fourth proportional to 201,820.50, 278,512.38 and 116,986.77 is: 161,441.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,820.50 : 278,512.38 = 116,986.77 : x
  2. Step 2: Convert to fraction form
    201,820.50/278,512.38 = 116,986.77/x
  3. Step 3: Cross multiply
    201,820.50x = 278,512.38 × 116,986.77
  4. Step 4: Simplify right side
    201,820.50x = 32,582,263,741.21
  5. Step 5: Solve for x
    x = 32,582,263,741.21/201,820.50
  6. Step 6: Final answer
    x = 161,441.79

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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.