Home / 211,558.80-317,039.76-116,831.64

Finding the Fourth Proportional to 211,558.80, 317,039.76 and 116,831.64

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Solution

The fourth proportional to 211,558.80, 317,039.76 and 116,831.64 is: 175,082.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,558.80 : 317,039.76 = 116,831.64 : x
  2. Step 2: Convert to fraction form
    211,558.80/317,039.76 = 116,831.64/x
  3. Step 3: Cross multiply
    211,558.80x = 317,039.76 × 116,831.64
  4. Step 4: Simplify right side
    211,558.80x = 37,040,275,106.01
  5. Step 5: Solve for x
    x = 37,040,275,106.01/211,558.80
  6. Step 6: Final answer
    x = 175,082.65

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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.