Home / 141,775.54-212,441.83-120,628.61

Finding the Fourth Proportional to 141,775.54, 212,441.83 and 120,628.61

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Solution

The fourth proportional to 141,775.54, 212,441.83 and 120,628.61 is: 180,754.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,775.54 : 212,441.83 = 120,628.61 : x
  2. Step 2: Convert to fraction form
    141,775.54/212,441.83 = 120,628.61/x
  3. Step 3: Cross multiply
    141,775.54x = 212,441.83 × 120,628.61
  4. Step 4: Simplify right side
    141,775.54x = 25,626,562,658.76
  5. Step 5: Solve for x
    x = 25,626,562,658.76/141,775.54
  6. Step 6: Final answer
    x = 180,754.47

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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.