Home / 189,642.45-261,705.75-104,759.51

Finding the Fourth Proportional to 189,642.45, 261,705.75 and 104,759.51

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Solution

The fourth proportional to 189,642.45, 261,705.75 and 104,759.51 is: 144,567.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,642.45 : 261,705.75 = 104,759.51 : x
  2. Step 2: Convert to fraction form
    189,642.45/261,705.75 = 104,759.51/x
  3. Step 3: Cross multiply
    189,642.45x = 261,705.75 × 104,759.51
  4. Step 4: Simplify right side
    189,642.45x = 27,416,164,825.65
  5. Step 5: Solve for x
    x = 27,416,164,825.65/189,642.45
  6. Step 6: Final answer
    x = 144,567.66

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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.