Home / 127,679.06-191,555.14-43,457.78

Finding the Fourth Proportional to 127,679.06, 191,555.14 and 43,457.78

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Solution

The fourth proportional to 127,679.06, 191,555.14 and 43,457.78 is: 65,199.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,679.06 : 191,555.14 = 43,457.78 : x
  2. Step 2: Convert to fraction form
    127,679.06/191,555.14 = 43,457.78/x
  3. Step 3: Cross multiply
    127,679.06x = 191,555.14 × 43,457.78
  4. Step 4: Simplify right side
    127,679.06x = 8,324,561,393.59
  5. Step 5: Solve for x
    x = 8,324,561,393.59/127,679.06
  6. Step 6: Final answer
    x = 65,199.11

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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.