Home / 127,917.98-191,941.77-86,277.50

Finding the Fourth Proportional to 127,917.98, 191,941.77 and 86,277.50

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Solution

The fourth proportional to 127,917.98, 191,941.77 and 86,277.50 is: 129,459.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,917.98 : 191,941.77 = 86,277.50 : x
  2. Step 2: Convert to fraction form
    127,917.98/191,941.77 = 86,277.50/x
  3. Step 3: Cross multiply
    127,917.98x = 191,941.77 × 86,277.50
  4. Step 4: Simplify right side
    127,917.98x = 16,560,256,061.18
  5. Step 5: Solve for x
    x = 16,560,256,061.18/127,917.98
  6. Step 6: Final answer
    x = 129,459.96

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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.