Home / 127,261.74-175,709.07-79,536.54

Finding the Fourth Proportional to 127,261.74, 175,709.07 and 79,536.54

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Solution

The fourth proportional to 127,261.74, 175,709.07 and 79,536.54 is: 109,815.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,261.74 : 175,709.07 = 79,536.54 : x
  2. Step 2: Convert to fraction form
    127,261.74/175,709.07 = 79,536.54/x
  3. Step 3: Cross multiply
    127,261.74x = 175,709.07 × 79,536.54
  4. Step 4: Simplify right side
    127,261.74x = 13,975,291,474.42
  5. Step 5: Solve for x
    x = 13,975,291,474.42/127,261.74
  6. Step 6: Final answer
    x = 109,815.34

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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.