Home / 103,378.26-154,994.49-40,145.72

Finding the Fourth Proportional to 103,378.26, 154,994.49 and 40,145.72

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Solution

The fourth proportional to 103,378.26, 154,994.49 and 40,145.72 is: 60,190.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,378.26 : 154,994.49 = 40,145.72 : x
  2. Step 2: Convert to fraction form
    103,378.26/154,994.49 = 40,145.72/x
  3. Step 3: Cross multiply
    103,378.26x = 154,994.49 × 40,145.72
  4. Step 4: Simplify right side
    103,378.26x = 6,222,364,622.11
  5. Step 5: Solve for x
    x = 6,222,364,622.11/103,378.26
  6. Step 6: Final answer
    x = 60,190.26

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.