Home / 189,365.09-261,336.62-108,824.72

Finding the Fourth Proportional to 189,365.09, 261,336.62 and 108,824.72

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Solution

The fourth proportional to 189,365.09, 261,336.62 and 108,824.72 is: 150,185.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,365.09 : 261,336.62 = 108,824.72 : x
  2. Step 2: Convert to fraction form
    189,365.09/261,336.62 = 108,824.72/x
  3. Step 3: Cross multiply
    189,365.09x = 261,336.62 × 108,824.72
  4. Step 4: Simplify right side
    189,365.09x = 28,439,883,462.63
  5. Step 5: Solve for x
    x = 28,439,883,462.63/189,365.09
  6. Step 6: Final answer
    x = 150,185.47

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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.