Home / 128,736.68-193,166.46-45,669.80

Finding the Fourth Proportional to 128,736.68, 193,166.46 and 45,669.80

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Solution

The fourth proportional to 128,736.68, 193,166.46 and 45,669.80 is: 68,526.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,736.68 : 193,166.46 = 45,669.80 : x
  2. Step 2: Convert to fraction form
    128,736.68/193,166.46 = 45,669.80/x
  3. Step 3: Cross multiply
    128,736.68x = 193,166.46 × 45,669.80
  4. Step 4: Simplify right side
    128,736.68x = 8,821,873,594.91
  5. Step 5: Solve for x
    x = 8,821,873,594.91/128,736.68
  6. Step 6: Final answer
    x = 68,526.50

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1.5x scale

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.