Home / 127,829.60-191,742.60-57,708.80

Finding the Fourth Proportional to 127,829.60, 191,742.60 and 57,708.80

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Solution

The fourth proportional to 127,829.60, 191,742.60 and 57,708.80 is: 86,562.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,829.60 : 191,742.60 = 57,708.80 : x
  2. Step 2: Convert to fraction form
    127,829.60/191,742.60 = 57,708.80/x
  3. Step 3: Cross multiply
    127,829.60x = 191,742.60 × 57,708.80
  4. Step 4: Simplify right side
    127,829.60x = 11,065,235,354.88
  5. Step 5: Solve for x
    x = 11,065,235,354.88/127,829.60
  6. Step 6: Final answer
    x = 86,562.39

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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.