Home / 201,711.86-278,360.07-111,065.93

Finding the Fourth Proportional to 201,711.86, 278,360.07 and 111,065.93

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Solution

The fourth proportional to 201,711.86, 278,360.07 and 111,065.93 is: 153,269.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,711.86 : 278,360.07 = 111,065.93 : x
  2. Step 2: Convert to fraction form
    201,711.86/278,360.07 = 111,065.93/x
  3. Step 3: Cross multiply
    201,711.86x = 278,360.07 × 111,065.93
  4. Step 4: Simplify right side
    201,711.86x = 30,916,320,049.42
  5. Step 5: Solve for x
    x = 30,916,320,049.42/201,711.86
  6. Step 6: Final answer
    x = 153,269.72

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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.