Home / 120,526.83-180,816.69-45,647.54

Finding the Fourth Proportional to 120,526.83, 180,816.69 and 45,647.54

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Solution

The fourth proportional to 120,526.83, 180,816.69 and 45,647.54 is: 68,481.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,526.83 : 180,816.69 = 45,647.54 : x
  2. Step 2: Convert to fraction form
    120,526.83/180,816.69 = 45,647.54/x
  3. Step 3: Cross multiply
    120,526.83x = 180,816.69 × 45,647.54
  4. Step 4: Simplify right side
    120,526.83x = 8,253,836,185.36
  5. Step 5: Solve for x
    x = 8,253,836,185.36/120,526.83
  6. Step 6: Final answer
    x = 68,481.32

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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.