Home / 120,249.45-180,278.06-57,037.77

Finding the Fourth Proportional to 120,249.45, 180,278.06 and 57,037.77

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Solution

The fourth proportional to 120,249.45, 180,278.06 and 57,037.77 is: 85,511.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,249.45 : 180,278.06 = 57,037.77 : x
  2. Step 2: Convert to fraction form
    120,249.45/180,278.06 = 57,037.77/x
  3. Step 3: Cross multiply
    120,249.45x = 180,278.06 × 57,037.77
  4. Step 4: Simplify right side
    120,249.45x = 10,282,658,237.14
  5. Step 5: Solve for x
    x = 10,282,658,237.14/120,249.45
  6. Step 6: Final answer
    x = 85,511.06

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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.