Home / 211,665.76-292,077.48-126,780.64

Finding the Fourth Proportional to 211,665.76, 292,077.48 and 126,780.64

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Solution

The fourth proportional to 211,665.76, 292,077.48 and 126,780.64 is: 174,944.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,665.76 : 292,077.48 = 126,780.64 : x
  2. Step 2: Convert to fraction form
    211,665.76/292,077.48 = 126,780.64/x
  3. Step 3: Cross multiply
    211,665.76x = 292,077.48 × 126,780.64
  4. Step 4: Simplify right side
    211,665.76x = 37,029,769,843.99
  5. Step 5: Solve for x
    x = 37,029,769,843.99/211,665.76
  6. Step 6: Final answer
    x = 174,944.54

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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.