Home / 201,966.40-278,700.95-111,317.37

Finding the Fourth Proportional to 201,966.40, 278,700.95 and 111,317.37

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Solution

The fourth proportional to 201,966.40, 278,700.95 and 111,317.37 is: 153,610.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,966.40 : 278,700.95 = 111,317.37 : x
  2. Step 2: Convert to fraction form
    201,966.40/278,700.95 = 111,317.37/x
  3. Step 3: Cross multiply
    201,966.40x = 278,700.95 × 111,317.37
  4. Step 4: Simplify right side
    201,966.40x = 31,024,257,745.55
  5. Step 5: Solve for x
    x = 31,024,257,745.55/201,966.40
  6. Step 6: Final answer
    x = 153,610.99

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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.