Home / 165,742.26-228,725.82-90,290.76

Finding the Fourth Proportional to 165,742.26, 228,725.82 and 90,290.76

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Solution

The fourth proportional to 165,742.26, 228,725.82 and 90,290.76 is: 124,602.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,742.26 : 228,725.82 = 90,290.76 : x
  2. Step 2: Convert to fraction form
    165,742.26/228,725.82 = 90,290.76/x
  3. Step 3: Cross multiply
    165,742.26x = 228,725.82 × 90,290.76
  4. Step 4: Simplify right side
    165,742.26x = 20,651,828,119.42
  5. Step 5: Solve for x
    x = 20,651,828,119.42/165,742.26
  6. Step 6: Final answer
    x = 124,602.07

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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.