Home / 147,219.35-203,163.69-83,558.21

Finding the Fourth Proportional to 147,219.35, 203,163.69 and 83,558.21

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Solution

The fourth proportional to 147,219.35, 203,163.69 and 83,558.21 is: 115,310.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,219.35 : 203,163.69 = 83,558.21 : x
  2. Step 2: Convert to fraction form
    147,219.35/203,163.69 = 83,558.21/x
  3. Step 3: Cross multiply
    147,219.35x = 203,163.69 × 83,558.21
  4. Step 4: Simplify right side
    147,219.35x = 16,975,994,273.39
  5. Step 5: Solve for x
    x = 16,975,994,273.39/147,219.35
  6. Step 6: Final answer
    x = 115,310.89

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1.5x scale

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.