Home / 188,215.04-259,744.80-111,779.36

Finding the Fourth Proportional to 188,215.04, 259,744.80 and 111,779.36

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Solution

The fourth proportional to 188,215.04, 259,744.80 and 111,779.36 is: 154,260.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,215.04 : 259,744.80 = 111,779.36 : x
  2. Step 2: Convert to fraction form
    188,215.04/259,744.80 = 111,779.36/x
  3. Step 3: Cross multiply
    188,215.04x = 259,744.80 × 111,779.36
  4. Step 4: Simplify right side
    188,215.04x = 29,034,107,507.33
  5. Step 5: Solve for x
    x = 29,034,107,507.33/188,215.04
  6. Step 6: Final answer
    x = 154,260.29

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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.