Home / 120,280.99-180,422.24-31,533.70

Finding the Fourth Proportional to 120,280.99, 180,422.24 and 31,533.70

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Solution

The fourth proportional to 120,280.99, 180,422.24 and 31,533.70 is: 47,300.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,280.99 : 180,422.24 = 31,533.70 : x
  2. Step 2: Convert to fraction form
    120,280.99/180,422.24 = 31,533.70/x
  3. Step 3: Cross multiply
    120,280.99x = 180,422.24 × 31,533.70
  4. Step 4: Simplify right side
    120,280.99x = 5,689,380,789.49
  5. Step 5: Solve for x
    x = 5,689,380,789.49/120,280.99
  6. Step 6: Final answer
    x = 47,300.75

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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.