Home / 147,821.25-203,993.34-79,838.22

Finding the Fourth Proportional to 147,821.25, 203,993.34 and 79,838.22

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Solution

The fourth proportional to 147,821.25, 203,993.34 and 79,838.22 is: 110,176.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,821.25 : 203,993.34 = 79,838.22 : x
  2. Step 2: Convert to fraction form
    147,821.25/203,993.34 = 79,838.22/x
  3. Step 3: Cross multiply
    147,821.25x = 203,993.34 × 79,838.22
  4. Step 4: Simplify right side
    147,821.25x = 16,286,465,157.45
  5. Step 5: Solve for x
    x = 16,286,465,157.45/147,821.25
  6. Step 6: Final answer
    x = 110,176.75

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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.