Home / 103,072.37-154,613.21-28,190.84

Finding the Fourth Proportional to 103,072.37, 154,613.21 and 28,190.84

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Solution

The fourth proportional to 103,072.37, 154,613.21 and 28,190.84 is: 42,287.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,072.37 : 154,613.21 = 28,190.84 : x
  2. Step 2: Convert to fraction form
    103,072.37/154,613.21 = 28,190.84/x
  3. Step 3: Cross multiply
    103,072.37x = 154,613.21 × 28,190.84
  4. Step 4: Simplify right side
    103,072.37x = 4,358,675,350.98
  5. Step 5: Solve for x
    x = 4,358,675,350.98/103,072.37
  6. Step 6: Final answer
    x = 42,287.53

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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.