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Finding the Fourth Proportional to 120,260.37, 180,452.80 and 87,252.87

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Solution

The fourth proportional to 120,260.37, 180,452.80 and 87,252.87 is: 130,924.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,260.37 : 180,452.80 = 87,252.87 : x
  2. Step 2: Convert to fraction form
    120,260.37/180,452.80 = 87,252.87/x
  3. Step 3: Cross multiply
    120,260.37x = 180,452.80 × 87,252.87
  4. Step 4: Simplify right side
    120,260.37x = 15,745,023,797.27
  5. Step 5: Solve for x
    x = 15,745,023,797.27/120,260.37
  6. Step 6: Final answer
    x = 130,924.46

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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.