Home / 211,359.13-317,077.56-69,212.32

Finding the Fourth Proportional to 211,359.13, 317,077.56 and 69,212.32

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Solution

The fourth proportional to 211,359.13, 317,077.56 and 69,212.32 is: 103,831.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,359.13 : 317,077.56 = 69,212.32 : x
  2. Step 2: Convert to fraction form
    211,359.13/317,077.56 = 69,212.32/x
  3. Step 3: Cross multiply
    211,359.13x = 317,077.56 × 69,212.32
  4. Step 4: Simplify right side
    211,359.13x = 21,945,672,754.85
  5. Step 5: Solve for x
    x = 21,945,672,754.85/211,359.13
  6. Step 6: Final answer
    x = 103,831.20

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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.