Home / 120,381.20-180,600.60-58,000.40

Finding the Fourth Proportional to 120,381.20, 180,600.60 and 58,000.40

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Solution

The fourth proportional to 120,381.20, 180,600.60 and 58,000.40 is: 87,014.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,381.20 : 180,600.60 = 58,000.40 : x
  2. Step 2: Convert to fraction form
    120,381.20/180,600.60 = 58,000.40/x
  3. Step 3: Cross multiply
    120,381.20x = 180,600.60 × 58,000.40
  4. Step 4: Simplify right side
    120,381.20x = 10,474,907,040.24
  5. Step 5: Solve for x
    x = 10,474,907,040.24/120,381.20
  6. Step 6: Final answer
    x = 87,014.48

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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.