Home / 211,986.40-317,639.40-112,016.20

Finding the Fourth Proportional to 211,986.40, 317,639.40 and 112,016.20

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Solution

The fourth proportional to 211,986.40, 317,639.40 and 112,016.20 is: 167,844.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,986.40 : 317,639.40 = 112,016.20 : x
  2. Step 2: Convert to fraction form
    211,986.40/317,639.40 = 112,016.20/x
  3. Step 3: Cross multiply
    211,986.40x = 317,639.40 × 112,016.20
  4. Step 4: Simplify right side
    211,986.40x = 35,580,758,558.28
  5. Step 5: Solve for x
    x = 35,580,758,558.28/211,986.40
  6. Step 6: Final answer
    x = 167,844.53

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1.5x scale

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.