Home / 127,615.74-191,408.96-34,128.78

Finding the Fourth Proportional to 127,615.74, 191,408.96 and 34,128.78

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Solution

The fourth proportional to 127,615.74, 191,408.96 and 34,128.78 is: 51,189.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,615.74 : 191,408.96 = 34,128.78 : x
  2. Step 2: Convert to fraction form
    127,615.74/191,408.96 = 34,128.78/x
  3. Step 3: Cross multiply
    127,615.74x = 191,408.96 × 34,128.78
  4. Step 4: Simplify right side
    127,615.74x = 6,532,554,285.87
  5. Step 5: Solve for x
    x = 6,532,554,285.87/127,615.74
  6. Step 6: Final answer
    x = 51,189.25

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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.