Home / 127,842.64-191,788.26-57,721.75

Finding the Fourth Proportional to 127,842.64, 191,788.26 and 57,721.75

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Solution

The fourth proportional to 127,842.64, 191,788.26 and 57,721.75 is: 86,593.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,842.64 : 191,788.26 = 57,721.75 : x
  2. Step 2: Convert to fraction form
    127,842.64/191,788.26 = 57,721.75/x
  3. Step 3: Cross multiply
    127,842.64x = 191,788.26 × 57,721.75
  4. Step 4: Simplify right side
    127,842.64x = 11,070,353,996.66
  5. Step 5: Solve for x
    x = 11,070,353,996.66/127,842.64
  6. Step 6: Final answer
    x = 86,593.60

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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.