Home / 120,271.12-180,240.44-104,438.56

Finding the Fourth Proportional to 120,271.12, 180,240.44 and 104,438.56

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Solution

The fourth proportional to 120,271.12, 180,240.44 and 104,438.56 is: 156,513.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,271.12 : 180,240.44 = 104,438.56 : x
  2. Step 2: Convert to fraction form
    120,271.12/180,240.44 = 104,438.56/x
  3. Step 3: Cross multiply
    120,271.12x = 180,240.44 × 104,438.56
  4. Step 4: Simplify right side
    120,271.12x = 18,824,052,007.37
  5. Step 5: Solve for x
    x = 18,824,052,007.37/120,271.12
  6. Step 6: Final answer
    x = 156,513.48

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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.