Home / 135,060.24-186,380.54-74,629.58

Finding the Fourth Proportional to 135,060.24, 186,380.54 and 74,629.58

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Solution

The fourth proportional to 135,060.24, 186,380.54 and 74,629.58 is: 102,987.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,060.24 : 186,380.54 = 74,629.58 : x
  2. Step 2: Convert to fraction form
    135,060.24/186,380.54 = 74,629.58/x
  3. Step 3: Cross multiply
    135,060.24x = 186,380.54 × 74,629.58
  4. Step 4: Simplify right side
    135,060.24x = 13,909,501,420.37
  5. Step 5: Solve for x
    x = 13,909,501,420.37/135,060.24
  6. Step 6: Final answer
    x = 102,987.39

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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.