Home / 189,145.02-261,020.70-104,260.26

Finding the Fourth Proportional to 189,145.02, 261,020.70 and 104,260.26

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Solution

The fourth proportional to 189,145.02, 261,020.70 and 104,260.26 is: 143,879.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,145.02 : 261,020.70 = 104,260.26 : x
  2. Step 2: Convert to fraction form
    189,145.02/261,020.70 = 104,260.26/x
  3. Step 3: Cross multiply
    189,145.02x = 261,020.70 × 104,260.26
  4. Step 4: Simplify right side
    189,145.02x = 27,214,086,047.38
  5. Step 5: Solve for x
    x = 27,214,086,047.38/189,145.02
  6. Step 6: Final answer
    x = 143,879.47

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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.