Home / 127,539.58-191,222.79-71,418.28

Finding the Fourth Proportional to 127,539.58, 191,222.79 and 71,418.28

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Solution

The fourth proportional to 127,539.58, 191,222.79 and 71,418.28 is: 107,078.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,539.58 : 191,222.79 = 71,418.28 : x
  2. Step 2: Convert to fraction form
    127,539.58/191,222.79 = 71,418.28/x
  3. Step 3: Cross multiply
    127,539.58x = 191,222.79 × 71,418.28
  4. Step 4: Simplify right side
    127,539.58x = 13,656,802,758.60
  5. Step 5: Solve for x
    x = 13,656,802,758.60/127,539.58
  6. Step 6: Final answer
    x = 107,078.94

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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.