Home / 201,619.40-278,216.70-116,742.20

Finding the Fourth Proportional to 201,619.40, 278,216.70 and 116,742.20

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Solution

The fourth proportional to 201,619.40, 278,216.70 and 116,742.20 is: 161,093.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,619.40 : 278,216.70 = 116,742.20 : x
  2. Step 2: Convert to fraction form
    201,619.40/278,216.70 = 116,742.20/x
  3. Step 3: Cross multiply
    201,619.40x = 278,216.70 × 116,742.20
  4. Step 4: Simplify right side
    201,619.40x = 32,479,629,634.74
  5. Step 5: Solve for x
    x = 32,479,629,634.74/201,619.40
  6. Step 6: Final answer
    x = 161,093.77

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1.5x scale

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.