Home / 103,105.61-154,658.46-28,226.37

Finding the Fourth Proportional to 103,105.61, 154,658.46 and 28,226.37

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Solution

The fourth proportional to 103,105.61, 154,658.46 and 28,226.37 is: 42,339.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,105.61 : 154,658.46 = 28,226.37 : x
  2. Step 2: Convert to fraction form
    103,105.61/154,658.46 = 28,226.37/x
  3. Step 3: Cross multiply
    103,105.61x = 154,658.46 × 28,226.37
  4. Step 4: Simplify right side
    103,105.61x = 4,365,447,601.41
  5. Step 5: Solve for x
    x = 4,365,447,601.41/103,105.61
  6. Step 6: Final answer
    x = 42,339.57

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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.