Home / 197,479.86-272,405.26-121,033.28

Finding the Fourth Proportional to 197,479.86, 272,405.26 and 121,033.28

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Solution

The fourth proportional to 197,479.86, 272,405.26 and 121,033.28 is: 166,954.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    197,479.86 : 272,405.26 = 121,033.28 : x
  2. Step 2: Convert to fraction form
    197,479.86/272,405.26 = 121,033.28/x
  3. Step 3: Cross multiply
    197,479.86x = 272,405.26 × 121,033.28
  4. Step 4: Simplify right side
    197,479.86x = 32,970,102,107.05
  5. Step 5: Solve for x
    x = 32,970,102,107.05/197,479.86
  6. Step 6: Final answer
    x = 166,954.25

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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.