Home / 261,928.87-392,564.77-111,993.17

Finding the Fourth Proportional to 261,928.87, 392,564.77 and 111,993.17

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Solution

The fourth proportional to 261,928.87, 392,564.77 and 111,993.17 is: 167,849.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    261,928.87 : 392,564.77 = 111,993.17 : x
  2. Step 2: Convert to fraction form
    261,928.87/392,564.77 = 111,993.17/x
  3. Step 3: Cross multiply
    261,928.87x = 392,564.77 × 111,993.17
  4. Step 4: Simplify right side
    261,928.87x = 43,964,570,779.81
  5. Step 5: Solve for x
    x = 43,964,570,779.81/261,928.87
  6. Step 6: Final answer
    x = 167,849.27

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.