Home / 120,100.20-180,150.24-31,352.94

Finding the Fourth Proportional to 120,100.20, 180,150.24 and 31,352.94

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Solution

The fourth proportional to 120,100.20, 180,150.24 and 31,352.94 is: 47,029.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,100.20 : 180,150.24 = 31,352.94 : x
  2. Step 2: Convert to fraction form
    120,100.20/180,150.24 = 31,352.94/x
  3. Step 3: Cross multiply
    120,100.20x = 180,150.24 × 31,352.94
  4. Step 4: Simplify right side
    120,100.20x = 5,648,239,665.71
  5. Step 5: Solve for x
    x = 5,648,239,665.71/120,100.20
  6. Step 6: Final answer
    x = 47,029.39

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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.