Home / 120,861.20-181,313.40-50,747.60

Finding the Fourth Proportional to 120,861.20, 181,313.40 and 50,747.60

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Solution

The fourth proportional to 120,861.20, 181,313.40 and 50,747.60 is: 76,130.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,861.20 : 181,313.40 = 50,747.60 : x
  2. Step 2: Convert to fraction form
    120,861.20/181,313.40 = 50,747.60/x
  3. Step 3: Cross multiply
    120,861.20x = 181,313.40 × 50,747.60
  4. Step 4: Simplify right side
    120,861.20x = 9,201,219,897.84
  5. Step 5: Solve for x
    x = 9,201,219,897.84/120,861.20
  6. Step 6: Final answer
    x = 76,130.47

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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.