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Finding the Fourth Proportional to 120,370.57, 180,555.42 and 36,130.37

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Solution

The fourth proportional to 120,370.57, 180,555.42 and 36,130.37 is: 54,195.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,370.57 : 180,555.42 = 36,130.37 : x
  2. Step 2: Convert to fraction form
    120,370.57/180,555.42 = 36,130.37/x
  3. Step 3: Cross multiply
    120,370.57x = 180,555.42 × 36,130.37
  4. Step 4: Simplify right side
    120,370.57x = 6,523,533,091.84
  5. Step 5: Solve for x
    x = 6,523,533,091.84/120,370.57
  6. Step 6: Final answer
    x = 54,195.42

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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.