Home / 120,056.40-179,974.52-46,128.72

Finding the Fourth Proportional to 120,056.40, 179,974.52 and 46,128.72

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Solution

The fourth proportional to 120,056.40, 179,974.52 and 46,128.72 is: 69,150.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,056.40 : 179,974.52 = 46,128.72 : x
  2. Step 2: Convert to fraction form
    120,056.40/179,974.52 = 46,128.72/x
  3. Step 3: Cross multiply
    120,056.40x = 179,974.52 × 46,128.72
  4. Step 4: Simplify right side
    120,056.40x = 8,301,994,240.21
  5. Step 5: Solve for x
    x = 8,301,994,240.21/120,056.40
  6. Step 6: Final answer
    x = 69,150.78

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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.