Home / 121,198.83-181,799.46-42,315.09

Finding the Fourth Proportional to 121,198.83, 181,799.46 and 42,315.09

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Solution

The fourth proportional to 121,198.83, 181,799.46 and 42,315.09 is: 63,473.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,198.83 : 181,799.46 = 42,315.09 : x
  2. Step 2: Convert to fraction form
    121,198.83/181,799.46 = 42,315.09/x
  3. Step 3: Cross multiply
    121,198.83x = 181,799.46 × 42,315.09
  4. Step 4: Simplify right side
    121,198.83x = 7,692,860,511.85
  5. Step 5: Solve for x
    x = 7,692,860,511.85/121,198.83
  6. Step 6: Final answer
    x = 63,473.06

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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.