Home / 120,813.36-181,195.39-45,907.21

Finding the Fourth Proportional to 120,813.36, 181,195.39 and 45,907.21

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Solution

The fourth proportional to 120,813.36, 181,195.39 and 45,907.21 is: 68,851.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,813.36 : 181,195.39 = 45,907.21 : x
  2. Step 2: Convert to fraction form
    120,813.36/181,195.39 = 45,907.21/x
  3. Step 3: Cross multiply
    120,813.36x = 181,195.39 × 45,907.21
  4. Step 4: Simplify right side
    120,813.36x = 8,318,174,819.76
  5. Step 5: Solve for x
    x = 8,318,174,819.76/120,813.36
  6. Step 6: Final answer
    x = 68,851.45

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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.