Home / 201,945.98-278,674.08-111,301.67

Finding the Fourth Proportional to 201,945.98, 278,674.08 and 111,301.67

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Solution

The fourth proportional to 201,945.98, 278,674.08 and 111,301.67 is: 153,590.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,945.98 : 278,674.08 = 111,301.67 : x
  2. Step 2: Convert to fraction form
    201,945.98/278,674.08 = 111,301.67/x
  3. Step 3: Cross multiply
    201,945.98x = 278,674.08 × 111,301.67
  4. Step 4: Simplify right side
    201,945.98x = 31,016,890,489.71
  5. Step 5: Solve for x
    x = 31,016,890,489.71/201,945.98
  6. Step 6: Final answer
    x = 153,590.04

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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.