Home / 148,841.03-205,399.80-80,857.44

Finding the Fourth Proportional to 148,841.03, 205,399.80 and 80,857.44

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Solution

The fourth proportional to 148,841.03, 205,399.80 and 80,857.44 is: 111,582.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,841.03 : 205,399.80 = 80,857.44 : x
  2. Step 2: Convert to fraction form
    148,841.03/205,399.80 = 80,857.44/x
  3. Step 3: Cross multiply
    148,841.03x = 205,399.80 × 80,857.44
  4. Step 4: Simplify right side
    148,841.03x = 16,608,102,004.51
  5. Step 5: Solve for x
    x = 16,608,102,004.51/148,841.03
  6. Step 6: Final answer
    x = 111,582.82

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1.5x scale

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.