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Finding the Fourth Proportional to 127,247.88, 190,622.14 and 103,580.88

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Solution

The fourth proportional to 127,247.88, 190,622.14 and 103,580.88 is: 155,168.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,247.88 : 190,622.14 = 103,580.88 : x
  2. Step 2: Convert to fraction form
    127,247.88/190,622.14 = 103,580.88/x
  3. Step 3: Cross multiply
    127,247.88x = 190,622.14 × 103,580.88
  4. Step 4: Simplify right side
    127,247.88x = 19,744,809,008.68
  5. Step 5: Solve for x
    x = 19,744,809,008.68/127,247.88
  6. Step 6: Final answer
    x = 155,168.08

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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.