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Finding the Fourth Proportional to 103,693.37, 155,521.22 and 28,794.69

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Solution

The fourth proportional to 103,693.37, 155,521.22 and 28,794.69 is: 43,186.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,693.37 : 155,521.22 = 28,794.69 : x
  2. Step 2: Convert to fraction form
    103,693.37/155,521.22 = 28,794.69/x
  3. Step 3: Cross multiply
    103,693.37x = 155,521.22 × 28,794.69
  4. Step 4: Simplify right side
    103,693.37x = 4,478,185,174.35
  5. Step 5: Solve for x
    x = 4,478,185,174.35/103,693.37
  6. Step 6: Final answer
    x = 43,186.81

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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.