Home / 202,085.93-278,876.89-111,445.67

Finding the Fourth Proportional to 202,085.93, 278,876.89 and 111,445.67

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Solution

The fourth proportional to 202,085.93, 278,876.89 and 111,445.67 is: 153,794.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,085.93 : 278,876.89 = 111,445.67 : x
  2. Step 2: Convert to fraction form
    202,085.93/278,876.89 = 111,445.67/x
  3. Step 3: Cross multiply
    202,085.93x = 278,876.89 × 111,445.67
  4. Step 4: Simplify right side
    202,085.93x = 31,079,621,853.57
  5. Step 5: Solve for x
    x = 31,079,621,853.57/202,085.93
  6. Step 6: Final answer
    x = 153,794.09

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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.