Home / 135,991.23-187,607.52-90,625.02

Finding the Fourth Proportional to 135,991.23, 187,607.52 and 90,625.02

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Solution

The fourth proportional to 135,991.23, 187,607.52 and 90,625.02 is: 125,022.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,991.23 : 187,607.52 = 90,625.02 : x
  2. Step 2: Convert to fraction form
    135,991.23/187,607.52 = 90,625.02/x
  3. Step 3: Cross multiply
    135,991.23x = 187,607.52 × 90,625.02
  4. Step 4: Simplify right side
    135,991.23x = 17,001,935,252.15
  5. Step 5: Solve for x
    x = 17,001,935,252.15/135,991.23
  6. Step 6: Final answer
    x = 125,022.29

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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.