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Finding the Fourth Proportional to 111,393.36, 167,089.68 and 28,287.36

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Solution

The fourth proportional to 111,393.36, 167,089.68 and 28,287.36 is: 42,430.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,393.36 : 167,089.68 = 28,287.36 : x
  2. Step 2: Convert to fraction form
    111,393.36/167,089.68 = 28,287.36/x
  3. Step 3: Cross multiply
    111,393.36x = 167,089.68 × 28,287.36
  4. Step 4: Simplify right side
    111,393.36x = 4,726,525,930.44
  5. Step 5: Solve for x
    x = 4,726,525,930.44/111,393.36
  6. Step 6: Final answer
    x = 42,430.95

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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.