Home / 138,270.96-190,757.16-102,548.88

Finding the Fourth Proportional to 138,270.96, 190,757.16 and 102,548.88

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Solution

The fourth proportional to 138,270.96, 190,757.16 and 102,548.88 is: 141,475.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,270.96 : 190,757.16 = 102,548.88 : x
  2. Step 2: Convert to fraction form
    138,270.96/190,757.16 = 102,548.88/x
  3. Step 3: Cross multiply
    138,270.96x = 190,757.16 × 102,548.88
  4. Step 4: Simplify right side
    138,270.96x = 19,561,933,109.98
  5. Step 5: Solve for x
    x = 19,561,933,109.98/138,270.96
  6. Step 6: Final answer
    x = 141,475.35

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.