Home / 120,181.22-180,017.54-77,935.80

Finding the Fourth Proportional to 120,181.22, 180,017.54 and 77,935.80

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Solution

The fourth proportional to 120,181.22, 180,017.54 and 77,935.80 is: 116,738.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,181.22 : 180,017.54 = 77,935.80 : x
  2. Step 2: Convert to fraction form
    120,181.22/180,017.54 = 77,935.80/x
  3. Step 3: Cross multiply
    120,181.22x = 180,017.54 × 77,935.80
  4. Step 4: Simplify right side
    120,181.22x = 14,029,811,571.58
  5. Step 5: Solve for x
    x = 14,029,811,571.58/120,181.22
  6. Step 6: Final answer
    x = 116,738.80

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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.