Home / 201,834.95-278,545.01-111,191.09

Finding the Fourth Proportional to 201,834.95, 278,545.01 and 111,191.09

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Solution

The fourth proportional to 201,834.95, 278,545.01 and 111,191.09 is: 153,450.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,834.95 : 278,545.01 = 111,191.09 : x
  2. Step 2: Convert to fraction form
    201,834.95/278,545.01 = 111,191.09/x
  3. Step 3: Cross multiply
    201,834.95x = 278,545.01 × 111,191.09
  4. Step 4: Simplify right side
    201,834.95x = 30,971,721,327.28
  5. Step 5: Solve for x
    x = 30,971,721,327.28/201,834.95
  6. Step 6: Final answer
    x = 153,450.74

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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.