Home / 120,289.28-180,314.85-56,997.50

Finding the Fourth Proportional to 120,289.28, 180,314.85 and 56,997.50

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Solution

The fourth proportional to 120,289.28, 180,314.85 and 56,997.50 is: 85,439.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,289.28 : 180,314.85 = 56,997.50 : x
  2. Step 2: Convert to fraction form
    120,289.28/180,314.85 = 56,997.50/x
  3. Step 3: Cross multiply
    120,289.28x = 180,314.85 × 56,997.50
  4. Step 4: Simplify right side
    120,289.28x = 10,277,495,662.88
  5. Step 5: Solve for x
    x = 10,277,495,662.88/120,289.28
  6. Step 6: Final answer
    x = 85,439.83

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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.