Home / 127,694.20-191,485.68-43,431.52

Finding the Fourth Proportional to 127,694.20, 191,485.68 and 43,431.52

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Solution

The fourth proportional to 127,694.20, 191,485.68 and 43,431.52 is: 65,128.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,694.20 : 191,485.68 = 43,431.52 : x
  2. Step 2: Convert to fraction form
    127,694.20/191,485.68 = 43,431.52/x
  3. Step 3: Cross multiply
    127,694.20x = 191,485.68 × 43,431.52
  4. Step 4: Simplify right side
    127,694.20x = 8,316,514,140.63
  5. Step 5: Solve for x
    x = 8,316,514,140.63/127,694.20
  6. Step 6: Final answer
    x = 65,128.36

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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.