Home / 189,654.48-261,736.74-109,107.18

Finding the Fourth Proportional to 189,654.48, 261,736.74 and 109,107.18

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Solution

The fourth proportional to 189,654.48, 261,736.74 and 109,107.18 is: 150,575.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,654.48 : 261,736.74 = 109,107.18 : x
  2. Step 2: Convert to fraction form
    189,654.48/261,736.74 = 109,107.18/x
  3. Step 3: Cross multiply
    189,654.48x = 261,736.74 × 109,107.18
  4. Step 4: Simplify right side
    189,654.48x = 28,557,357,603.79
  5. Step 5: Solve for x
    x = 28,557,357,603.79/189,654.48
  6. Step 6: Final answer
    x = 150,575.71

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1.5x scale

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.