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Finding the Fourth Proportional to 115,230.75, 172,846.13 and 27,678.75

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Solution

The fourth proportional to 115,230.75, 172,846.13 and 27,678.75 is: 41,518.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,230.75 : 172,846.13 = 27,678.75 : x
  2. Step 2: Convert to fraction form
    115,230.75/172,846.13 = 27,678.75/x
  3. Step 3: Cross multiply
    115,230.75x = 172,846.13 × 27,678.75
  4. Step 4: Simplify right side
    115,230.75x = 4,784,164,682.34
  5. Step 5: Solve for x
    x = 4,784,164,682.34/115,230.75
  6. Step 6: Final answer
    x = 41,518.13

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.