Home / 127,997.80-191,840.97-90,568.66

Finding the Fourth Proportional to 127,997.80, 191,840.97 and 90,568.66

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Solution

The fourth proportional to 127,997.80, 191,840.97 and 90,568.66 is: 135,742.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,997.80 : 191,840.97 = 90,568.66 : x
  2. Step 2: Convert to fraction form
    127,997.80/191,840.97 = 90,568.66/x
  3. Step 3: Cross multiply
    127,997.80x = 191,840.97 × 90,568.66
  4. Step 4: Simplify right side
    127,997.80x = 17,374,779,586.00
  5. Step 5: Solve for x
    x = 17,374,779,586.00/127,997.80
  6. Step 6: Final answer
    x = 135,742.80

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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.