Home / 135,816.25-187,417.86-75,383.37

Finding the Fourth Proportional to 135,816.25, 187,417.86 and 75,383.37

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Solution

The fourth proportional to 135,816.25, 187,417.86 and 75,383.37 is: 104,024.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,816.25 : 187,417.86 = 75,383.37 : x
  2. Step 2: Convert to fraction form
    135,816.25/187,417.86 = 75,383.37/x
  3. Step 3: Cross multiply
    135,816.25x = 187,417.86 × 75,383.37
  4. Step 4: Simplify right side
    135,816.25x = 14,128,188,899.48
  5. Step 5: Solve for x
    x = 14,128,188,899.48/135,816.25
  6. Step 6: Final answer
    x = 104,024.29

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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.