Home / 127,905.60-191,856.60-57,784.80

Finding the Fourth Proportional to 127,905.60, 191,856.60 and 57,784.80

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Solution

The fourth proportional to 127,905.60, 191,856.60 and 57,784.80 is: 86,676.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,905.60 : 191,856.60 = 57,784.80 : x
  2. Step 2: Convert to fraction form
    127,905.60/191,856.60 = 57,784.80/x
  3. Step 3: Cross multiply
    127,905.60x = 191,856.60 × 57,784.80
  4. Step 4: Simplify right side
    127,905.60x = 11,086,395,259.68
  5. Step 5: Solve for x
    x = 11,086,395,259.68/127,905.60
  6. Step 6: Final answer
    x = 86,676.39

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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.