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Finding the Fourth Proportional to 189,036.93, 260,871 and 104,153.25

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Solution

The fourth proportional to 189,036.93, 260,871 and 104,153.25 is: 143,731.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,036.93 : 260,871 = 104,153.25 : x
  2. Step 2: Convert to fraction form
    189,036.93/260,871 = 104,153.25/x
  3. Step 3: Cross multiply
    189,036.93x = 260,871 × 104,153.25
  4. Step 4: Simplify right side
    189,036.93x = 27,170,562,480.75
  5. Step 5: Solve for x
    x = 27,170,562,480.75/189,036.93
  6. Step 6: Final answer
    x = 143,731.51

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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.