Home / 120,783.51-181,100.85-40,813.92

Finding the Fourth Proportional to 120,783.51, 181,100.85 and 40,813.92

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Solution

The fourth proportional to 120,783.51, 181,100.85 and 40,813.92 is: 61,195.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,783.51 : 181,100.85 = 40,813.92 : x
  2. Step 2: Convert to fraction form
    120,783.51/181,100.85 = 40,813.92/x
  3. Step 3: Cross multiply
    120,783.51x = 181,100.85 × 40,813.92
  4. Step 4: Simplify right side
    120,783.51x = 7,391,435,858.30
  5. Step 5: Solve for x
    x = 7,391,435,858.30/120,783.51
  6. Step 6: Final answer
    x = 61,195.74

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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.