Home / 127,739.41-191,637.26-38,999.86

Finding the Fourth Proportional to 127,739.41, 191,637.26 and 38,999.86

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Solution

The fourth proportional to 127,739.41, 191,637.26 and 38,999.86 is: 58,508.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,739.41 : 191,637.26 = 38,999.86 : x
  2. Step 2: Convert to fraction form
    127,739.41/191,637.26 = 38,999.86/x
  3. Step 3: Cross multiply
    127,739.41x = 191,637.26 × 38,999.86
  4. Step 4: Simplify right side
    127,739.41x = 7,473,825,782.94
  5. Step 5: Solve for x
    x = 7,473,825,782.94/127,739.41
  6. Step 6: Final answer
    x = 58,508.38

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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.