Home / 165,743.52-228,725.64-90,291.84

Finding the Fourth Proportional to 165,743.52, 228,725.64 and 90,291.84

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Solution

The fourth proportional to 165,743.52, 228,725.64 and 90,291.84 is: 124,602.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,743.52 : 228,725.64 = 90,291.84 : x
  2. Step 2: Convert to fraction form
    165,743.52/228,725.64 = 90,291.84/x
  3. Step 3: Cross multiply
    165,743.52x = 228,725.64 × 90,291.84
  4. Step 4: Simplify right side
    165,743.52x = 20,652,058,890.78
  5. Step 5: Solve for x
    x = 20,652,058,890.78/165,743.52
  6. Step 6: Final answer
    x = 124,602.51

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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.