Home / 190,837.34-285,820.02-91,067.61

Finding the Fourth Proportional to 190,837.34, 285,820.02 and 91,067.61

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Solution

The fourth proportional to 190,837.34, 285,820.02 and 91,067.61 is: 136,393.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,837.34 : 285,820.02 = 91,067.61 : x
  2. Step 2: Convert to fraction form
    190,837.34/285,820.02 = 91,067.61/x
  3. Step 3: Cross multiply
    190,837.34x = 285,820.02 × 91,067.61
  4. Step 4: Simplify right side
    190,837.34x = 26,028,946,111.55
  5. Step 5: Solve for x
    x = 26,028,946,111.55/190,837.34
  6. Step 6: Final answer
    x = 136,393.36

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.