Home / 128,743.20-193,114.80-33,973.20

Finding the Fourth Proportional to 128,743.20, 193,114.80 and 33,973.20

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Solution

The fourth proportional to 128,743.20, 193,114.80 and 33,973.20 is: 50,959.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,743.20 : 193,114.80 = 33,973.20 : x
  2. Step 2: Convert to fraction form
    128,743.20/193,114.80 = 33,973.20/x
  3. Step 3: Cross multiply
    128,743.20x = 193,114.80 × 33,973.20
  4. Step 4: Simplify right side
    128,743.20x = 6,560,727,723.36
  5. Step 5: Solve for x
    x = 6,560,727,723.36/128,743.20
  6. Step 6: Final answer
    x = 50,959.80

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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.