Home / 189,440.33-261,430.13-111,918.53

Finding the Fourth Proportional to 189,440.33, 261,430.13 and 111,918.53

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Solution

The fourth proportional to 189,440.33, 261,430.13 and 111,918.53 is: 154,449.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,440.33 : 261,430.13 = 111,918.53 : x
  2. Step 2: Convert to fraction form
    189,440.33/261,430.13 = 111,918.53/x
  3. Step 3: Cross multiply
    189,440.33x = 261,430.13 × 111,918.53
  4. Step 4: Simplify right side
    189,440.33x = 29,258,876,080.65
  5. Step 5: Solve for x
    x = 29,258,876,080.65/189,440.33
  6. Step 6: Final answer
    x = 154,449.03

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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.