Home / 141,064.75-194,669.37-80,636.72

Finding the Fourth Proportional to 141,064.75, 194,669.37 and 80,636.72

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Solution

The fourth proportional to 141,064.75, 194,669.37 and 80,636.72 is: 111,278.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,064.75 : 194,669.37 = 80,636.72 : x
  2. Step 2: Convert to fraction form
    141,064.75/194,669.37 = 80,636.72/x
  3. Step 3: Cross multiply
    141,064.75x = 194,669.37 × 80,636.72
  4. Step 4: Simplify right side
    141,064.75x = 15,697,498,507.92
  5. Step 5: Solve for x
    x = 15,697,498,507.92/141,064.75
  6. Step 6: Final answer
    x = 111,278.67

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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.