Home / 120,327.85-180,487.95-57,193.39

Finding the Fourth Proportional to 120,327.85, 180,487.95 and 57,193.39

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Solution

The fourth proportional to 120,327.85, 180,487.95 and 57,193.39 is: 85,788.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,327.85 : 180,487.95 = 57,193.39 : x
  2. Step 2: Convert to fraction form
    120,327.85/180,487.95 = 57,193.39/x
  3. Step 3: Cross multiply
    120,327.85x = 180,487.95 × 57,193.39
  4. Step 4: Simplify right side
    120,327.85x = 10,322,717,714.65
  5. Step 5: Solve for x
    x = 10,322,717,714.65/120,327.85
  6. Step 6: Final answer
    x = 85,788.27

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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.