Home / 120,371.90-180,558.74-31,625.24

Finding the Fourth Proportional to 120,371.90, 180,558.74 and 31,625.24

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Solution

The fourth proportional to 120,371.90, 180,558.74 and 31,625.24 is: 47,438.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,371.90 : 180,558.74 = 31,625.24 : x
  2. Step 2: Convert to fraction form
    120,371.90/180,558.74 = 31,625.24/x
  3. Step 3: Cross multiply
    120,371.90x = 180,558.74 × 31,625.24
  4. Step 4: Simplify right side
    120,371.90x = 5,710,212,662.87
  5. Step 5: Solve for x
    x = 5,710,212,662.87/120,371.90
  6. Step 6: Final answer
    x = 47,438.09

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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.