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Finding the Fourth Proportional to 120,003.76, 179,903.58 and 73,289.44

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Solution

The fourth proportional to 120,003.76, 179,903.58 and 73,289.44 is: 109,871.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,003.76 : 179,903.58 = 73,289.44 : x
  2. Step 2: Convert to fraction form
    120,003.76/179,903.58 = 73,289.44/x
  3. Step 3: Cross multiply
    120,003.76x = 179,903.58 × 73,289.44
  4. Step 4: Simplify right side
    120,003.76x = 13,185,032,632.20
  5. Step 5: Solve for x
    x = 13,185,032,632.20/120,003.76
  6. Step 6: Final answer
    x = 109,871.83

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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.