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Finding the Fourth Proportional to 111,428.88, 167,147.28 and 36,550.80

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Solution

The fourth proportional to 111,428.88, 167,147.28 and 36,550.80 is: 54,827.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,428.88 : 167,147.28 = 36,550.80 : x
  2. Step 2: Convert to fraction form
    111,428.88/167,147.28 = 36,550.80/x
  3. Step 3: Cross multiply
    111,428.88x = 167,147.28 × 36,550.80
  4. Step 4: Simplify right side
    111,428.88x = 6,109,366,801.82
  5. Step 5: Solve for x
    x = 6,109,366,801.82/111,428.88
  6. Step 6: Final answer
    x = 54,827.50

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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.