Home / 127,971.60-192,187.80-123,824.40

Finding the Fourth Proportional to 127,971.60, 192,187.80 and 123,824.40

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Solution

The fourth proportional to 127,971.60, 192,187.80 and 123,824.40 is: 185,959.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,971.60 : 192,187.80 = 123,824.40 : x
  2. Step 2: Convert to fraction form
    127,971.60/192,187.80 = 123,824.40/x
  3. Step 3: Cross multiply
    127,971.60x = 192,187.80 × 123,824.40
  4. Step 4: Simplify right side
    127,971.60x = 23,797,539,022.32
  5. Step 5: Solve for x
    x = 23,797,539,022.32/127,971.60
  6. Step 6: Final answer
    x = 185,959.53

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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.