Home / 189,686.26-261,772.32-104,808.79

Finding the Fourth Proportional to 189,686.26, 261,772.32 and 104,808.79

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Solution

The fourth proportional to 189,686.26, 261,772.32 and 104,808.79 is: 144,639.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,686.26 : 261,772.32 = 104,808.79 : x
  2. Step 2: Convert to fraction form
    189,686.26/261,772.32 = 104,808.79/x
  3. Step 3: Cross multiply
    189,686.26x = 261,772.32 × 104,808.79
  4. Step 4: Simplify right side
    189,686.26x = 27,436,040,114.69
  5. Step 5: Solve for x
    x = 27,436,040,114.69/189,686.26
  6. Step 6: Final answer
    x = 144,639.05

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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.