Home / 148,826.63-205,384.46-80,843.60

Finding the Fourth Proportional to 148,826.63, 205,384.46 and 80,843.60

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Solution

The fourth proportional to 148,826.63, 205,384.46 and 80,843.60 is: 111,566.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,826.63 : 205,384.46 = 80,843.60 : x
  2. Step 2: Convert to fraction form
    148,826.63/205,384.46 = 80,843.60/x
  3. Step 3: Cross multiply
    148,826.63x = 205,384.46 × 80,843.60
  4. Step 4: Simplify right side
    148,826.63x = 16,604,019,239.70
  5. Step 5: Solve for x
    x = 16,604,019,239.70/148,826.63
  6. Step 6: Final answer
    x = 111,566.18

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.