Home / 128,008.57-192,012.95-43,769.36

Finding the Fourth Proportional to 128,008.57, 192,012.95 and 43,769.36

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Solution

The fourth proportional to 128,008.57, 192,012.95 and 43,769.36 is: 65,654.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,008.57 : 192,012.95 = 43,769.36 : x
  2. Step 2: Convert to fraction form
    128,008.57/192,012.95 = 43,769.36/x
  3. Step 3: Cross multiply
    128,008.57x = 192,012.95 × 43,769.36
  4. Step 4: Simplify right side
    128,008.57x = 8,404,284,636.49
  5. Step 5: Solve for x
    x = 8,404,284,636.49/128,008.57
  6. Step 6: Final answer
    x = 65,654.08

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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.