Home / 201,703.18-278,348.04-111,057.22

Finding the Fourth Proportional to 201,703.18, 278,348.04 and 111,057.22

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Solution

The fourth proportional to 201,703.18, 278,348.04 and 111,057.22 is: 153,257.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,703.18 : 278,348.04 = 111,057.22 : x
  2. Step 2: Convert to fraction form
    201,703.18/278,348.04 = 111,057.22/x
  3. Step 3: Cross multiply
    201,703.18x = 278,348.04 × 111,057.22
  4. Step 4: Simplify right side
    201,703.18x = 30,912,559,514.85
  5. Step 5: Solve for x
    x = 30,912,559,514.85/201,703.18
  6. Step 6: Final answer
    x = 153,257.67

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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.