Home / 127,208.52-190,812.75-74,589.30

Finding the Fourth Proportional to 127,208.52, 190,812.75 and 74,589.30

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Solution

The fourth proportional to 127,208.52, 190,812.75 and 74,589.30 is: 111,883.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,208.52 : 190,812.75 = 74,589.30 : x
  2. Step 2: Convert to fraction form
    127,208.52/190,812.75 = 74,589.30/x
  3. Step 3: Cross multiply
    127,208.52x = 190,812.75 × 74,589.30
  4. Step 4: Simplify right side
    127,208.52x = 14,232,589,453.58
  5. Step 5: Solve for x
    x = 14,232,589,453.58/127,208.52
  6. Step 6: Final answer
    x = 111,883.93

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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.