Home / 165,723.28-228,696.96-90,271.78

Finding the Fourth Proportional to 165,723.28, 228,696.96 and 90,271.78

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Solution

The fourth proportional to 165,723.28, 228,696.96 and 90,271.78 is: 124,574.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,723.28 : 228,696.96 = 90,271.78 : x
  2. Step 2: Convert to fraction form
    165,723.28/228,696.96 = 90,271.78/x
  3. Step 3: Cross multiply
    165,723.28x = 228,696.96 × 90,271.78
  4. Step 4: Simplify right side
    165,723.28x = 20,644,881,659.79
  5. Step 5: Solve for x
    x = 20,644,881,659.79/165,723.28
  6. Step 6: Final answer
    x = 124,574.42

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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.