Home / 189,153.83-261,027.36-103,114.51

Finding the Fourth Proportional to 189,153.83, 261,027.36 and 103,114.51

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Solution

The fourth proportional to 189,153.83, 261,027.36 and 103,114.51 is: 142,295.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,153.83 : 261,027.36 = 103,114.51 : x
  2. Step 2: Convert to fraction form
    189,153.83/261,027.36 = 103,114.51/x
  3. Step 3: Cross multiply
    189,153.83x = 261,027.36 × 103,114.51
  4. Step 4: Simplify right side
    189,153.83x = 26,915,707,670.43
  5. Step 5: Solve for x
    x = 26,915,707,670.43/189,153.83
  6. Step 6: Final answer
    x = 142,295.33

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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.