Home / 190,094.78-262,060.38-129,587.78

Finding the Fourth Proportional to 190,094.78, 262,060.38 and 129,587.78

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Solution

The fourth proportional to 190,094.78, 262,060.38 and 129,587.78 is: 178,646.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,094.78 : 262,060.38 = 129,587.78 : x
  2. Step 2: Convert to fraction form
    190,094.78/262,060.38 = 129,587.78/x
  3. Step 3: Cross multiply
    190,094.78x = 262,060.38 × 129,587.78
  4. Step 4: Simplify right side
    190,094.78x = 33,959,823,525.31
  5. Step 5: Solve for x
    x = 33,959,823,525.31/190,094.78
  6. Step 6: Final answer
    x = 178,646.79

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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.