Home / 202,023.21-278,778.92-111,379.94

Finding the Fourth Proportional to 202,023.21, 278,778.92 and 111,379.94

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Solution

The fourth proportional to 202,023.21, 278,778.92 and 111,379.94 is: 153,697.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,023.21 : 278,778.92 = 111,379.94 : x
  2. Step 2: Convert to fraction form
    202,023.21/278,778.92 = 111,379.94/x
  3. Step 3: Cross multiply
    202,023.21x = 278,778.92 × 111,379.94
  4. Step 4: Simplify right side
    202,023.21x = 31,050,377,432.07
  5. Step 5: Solve for x
    x = 31,050,377,432.07/202,023.21
  6. Step 6: Final answer
    x = 153,697.08

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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.