Home / 165,712.33-228,769.55-129,335.64

Finding the Fourth Proportional to 165,712.33, 228,769.55 and 129,335.64

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Solution

The fourth proportional to 165,712.33, 228,769.55 and 129,335.64 is: 178,550.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,712.33 : 228,769.55 = 129,335.64 : x
  2. Step 2: Convert to fraction form
    165,712.33/228,769.55 = 129,335.64/x
  3. Step 3: Cross multiply
    165,712.33x = 228,769.55 × 129,335.64
  4. Step 4: Simplify right side
    165,712.33x = 29,588,056,161.76
  5. Step 5: Solve for x
    x = 29,588,056,161.76/165,712.33
  6. Step 6: Final answer
    x = 178,550.72

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1.5x scale

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.