Home / 120,190.34-180,271.74-31,452.42

Finding the Fourth Proportional to 120,190.34, 180,271.74 and 31,452.42

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Solution

The fourth proportional to 120,190.34, 180,271.74 and 31,452.42 is: 47,175.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,190.34 : 180,271.74 = 31,452.42 : x
  2. Step 2: Convert to fraction form
    120,190.34/180,271.74 = 31,452.42/x
  3. Step 3: Cross multiply
    120,190.34x = 180,271.74 × 31,452.42
  4. Step 4: Simplify right side
    120,190.34x = 5,669,982,480.61
  5. Step 5: Solve for x
    x = 5,669,982,480.61/120,190.34
  6. Step 6: Final answer
    x = 47,175.03

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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.