Home / 135,339.45-186,762.56-74,906.48

Finding the Fourth Proportional to 135,339.45, 186,762.56 and 74,906.48

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Solution

The fourth proportional to 135,339.45, 186,762.56 and 74,906.48 is: 103,367.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,339.45 : 186,762.56 = 74,906.48 : x
  2. Step 2: Convert to fraction form
    135,339.45/186,762.56 = 74,906.48/x
  3. Step 3: Cross multiply
    135,339.45x = 186,762.56 × 74,906.48
  4. Step 4: Simplify right side
    135,339.45x = 13,989,726,057.76
  5. Step 5: Solve for x
    x = 13,989,726,057.76/135,339.45
  6. Step 6: Final answer
    x = 103,367.69

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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.