Home / 120,638.49-180,928.58-50,570.25

Finding the Fourth Proportional to 120,638.49, 180,928.58 and 50,570.25

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Solution

The fourth proportional to 120,638.49, 180,928.58 and 50,570.25 is: 75,843.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,638.49 : 180,928.58 = 50,570.25 : x
  2. Step 2: Convert to fraction form
    120,638.49/180,928.58 = 50,570.25/x
  3. Step 3: Cross multiply
    120,638.49x = 180,928.58 × 50,570.25
  4. Step 4: Simplify right side
    120,638.49x = 9,149,603,269.89
  5. Step 5: Solve for x
    x = 9,149,603,269.89/120,638.49
  6. Step 6: Final answer
    x = 75,843.15

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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.