Home / 80,114.04-120,152.40-30,199.12

Finding the Fourth Proportional to 80,114.04, 120,152.40 and 30,199.12

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Solution

The fourth proportional to 80,114.04, 120,152.40 and 30,199.12 is: 45,291.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,114.04 : 120,152.40 = 30,199.12 : x
  2. Step 2: Convert to fraction form
    80,114.04/120,152.40 = 30,199.12/x
  3. Step 3: Cross multiply
    80,114.04x = 120,152.40 × 30,199.12
  4. Step 4: Simplify right side
    80,114.04x = 3,628,496,745.89
  5. Step 5: Solve for x
    x = 3,628,496,745.89/80,114.04
  6. Step 6: Final answer
    x = 45,291.65

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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.