Home / 120,818.35-181,158.08-49,790.03

Finding the Fourth Proportional to 120,818.35, 181,158.08 and 49,790.03

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Solution

The fourth proportional to 120,818.35, 181,158.08 and 49,790.03 is: 74,656.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,818.35 : 181,158.08 = 49,790.03 : x
  2. Step 2: Convert to fraction form
    120,818.35/181,158.08 = 49,790.03/x
  3. Step 3: Cross multiply
    120,818.35x = 181,158.08 × 49,790.03
  4. Step 4: Simplify right side
    120,818.35x = 9,019,865,223.24
  5. Step 5: Solve for x
    x = 9,019,865,223.24/120,818.35
  6. Step 6: Final answer
    x = 74,656.42

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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.