Home / 203,030.22-280,189.20-111,155.94

Finding the Fourth Proportional to 203,030.22, 280,189.20 and 111,155.94

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Solution

The fourth proportional to 203,030.22, 280,189.20 and 111,155.94 is: 153,399.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,030.22 : 280,189.20 = 111,155.94 : x
  2. Step 2: Convert to fraction form
    203,030.22/280,189.20 = 111,155.94/x
  3. Step 3: Cross multiply
    203,030.22x = 280,189.20 × 111,155.94
  4. Step 4: Simplify right side
    203,030.22x = 31,144,693,903.85
  5. Step 5: Solve for x
    x = 31,144,693,903.85/203,030.22
  6. Step 6: Final answer
    x = 153,399.30

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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.