Home / 203,065.03-280,219.06-111,166.71

Finding the Fourth Proportional to 203,065.03, 280,219.06 and 111,166.71

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Solution

The fourth proportional to 203,065.03, 280,219.06 and 111,166.71 is: 153,404.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,065.03 : 280,219.06 = 111,166.71 : x
  2. Step 2: Convert to fraction form
    203,065.03/280,219.06 = 111,166.71/x
  3. Step 3: Cross multiply
    203,065.03x = 280,219.06 × 111,166.71
  4. Step 4: Simplify right side
    203,065.03x = 31,151,029,781.45
  5. Step 5: Solve for x
    x = 31,151,029,781.45/203,065.03
  6. Step 6: Final answer
    x = 153,404.21

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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.