Home / 188,921.72-260,713.68-104,039.12

Finding the Fourth Proportional to 188,921.72, 260,713.68 and 104,039.12

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Solution

The fourth proportional to 188,921.72, 260,713.68 and 104,039.12 is: 143,574.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,921.72 : 260,713.68 = 104,039.12 : x
  2. Step 2: Convert to fraction form
    188,921.72/260,713.68 = 104,039.12/x
  3. Step 3: Cross multiply
    188,921.72x = 260,713.68 × 104,039.12
  4. Step 4: Simplify right side
    188,921.72x = 27,124,421,839.16
  5. Step 5: Solve for x
    x = 27,124,421,839.16/188,921.72
  6. Step 6: Final answer
    x = 143,574.93

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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.