Home / 190,788.80-286,091.04-111,928.64

Finding the Fourth Proportional to 190,788.80, 286,091.04 and 111,928.64

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Solution

The fourth proportional to 190,788.80, 286,091.04 and 111,928.64 is: 167,838.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,788.80 : 286,091.04 = 111,928.64 : x
  2. Step 2: Convert to fraction form
    190,788.80/286,091.04 = 111,928.64/x
  3. Step 3: Cross multiply
    190,788.80x = 286,091.04 × 111,928.64
  4. Step 4: Simplify right side
    190,788.80x = 32,021,781,023.39
  5. Step 5: Solve for x
    x = 32,021,781,023.39/190,788.80
  6. Step 6: Final answer
    x = 167,838.89

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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.