Home / 183,815.80-275,723.70-120,830.20

Finding the Fourth Proportional to 183,815.80, 275,723.70 and 120,830.20

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Solution

The fourth proportional to 183,815.80, 275,723.70 and 120,830.20 is: 181,245.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    183,815.80 : 275,723.70 = 120,830.20 : x
  2. Step 2: Convert to fraction form
    183,815.80/275,723.70 = 120,830.20/x
  3. Step 3: Cross multiply
    183,815.80x = 275,723.70 × 120,830.20
  4. Step 4: Simplify right side
    183,815.80x = 33,315,749,815.74
  5. Step 5: Solve for x
    x = 33,315,749,815.74/183,815.80
  6. Step 6: Final answer
    x = 181,245.30

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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.