Home / 135,340.45-186,763.93-74,907.48

Finding the Fourth Proportional to 135,340.45, 186,763.93 and 74,907.48

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Solution

The fourth proportional to 135,340.45, 186,763.93 and 74,907.48 is: 103,369.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,340.45 : 186,763.93 = 74,907.48 : x
  2. Step 2: Convert to fraction form
    135,340.45/186,763.93 = 74,907.48/x
  3. Step 3: Cross multiply
    135,340.45x = 186,763.93 × 74,907.48
  4. Step 4: Simplify right side
    135,340.45x = 13,990,015,351.20
  5. Step 5: Solve for x
    x = 13,990,015,351.20/135,340.45
  6. Step 6: Final answer
    x = 103,369.06

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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.