Home / 145,861.37-201,288.67-82,201.44

Finding the Fourth Proportional to 145,861.37, 201,288.67 and 82,201.44

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Solution

The fourth proportional to 145,861.37, 201,288.67 and 82,201.44 is: 113,437.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,861.37 : 201,288.67 = 82,201.44 : x
  2. Step 2: Convert to fraction form
    145,861.37/201,288.67 = 82,201.44/x
  3. Step 3: Cross multiply
    145,861.37x = 201,288.67 × 82,201.44
  4. Step 4: Simplify right side
    145,861.37x = 16,546,218,529.68
  5. Step 5: Solve for x
    x = 16,546,218,529.68/145,861.37
  6. Step 6: Final answer
    x = 113,437.98

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.