Home / 127,983.78-191,974.86-43,703.28

Finding the Fourth Proportional to 127,983.78, 191,974.86 and 43,703.28

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Solution

The fourth proportional to 127,983.78, 191,974.86 and 43,703.28 is: 65,554.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,983.78 : 191,974.86 = 43,703.28 : x
  2. Step 2: Convert to fraction form
    127,983.78/191,974.86 = 43,703.28/x
  3. Step 3: Cross multiply
    127,983.78x = 191,974.86 × 43,703.28
  4. Step 4: Simplify right side
    127,983.78x = 8,389,931,059.54
  5. Step 5: Solve for x
    x = 8,389,931,059.54/127,983.78
  6. Step 6: Final answer
    x = 65,554.64

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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.