Home / 190,789.80-286,092.54-111,929.64

Finding the Fourth Proportional to 190,789.80, 286,092.54 and 111,929.64

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Solution

The fourth proportional to 190,789.80, 286,092.54 and 111,929.64 is: 167,840.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,789.80 : 286,092.54 = 111,929.64 : x
  2. Step 2: Convert to fraction form
    190,789.80/286,092.54 = 111,929.64/x
  3. Step 3: Cross multiply
    190,789.80x = 286,092.54 × 111,929.64
  4. Step 4: Simplify right side
    190,789.80x = 32,022,235,008.89
  5. Step 5: Solve for x
    x = 32,022,235,008.89/190,789.80
  6. Step 6: Final answer
    x = 167,840.39

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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.