Home / 127,680.51-191,551.79-38,935.59

Finding the Fourth Proportional to 127,680.51, 191,551.79 and 38,935.59

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Solution

The fourth proportional to 127,680.51, 191,551.79 and 38,935.59 is: 58,412.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,680.51 : 191,551.79 = 38,935.59 : x
  2. Step 2: Convert to fraction form
    127,680.51/191,551.79 = 38,935.59/x
  3. Step 3: Cross multiply
    127,680.51x = 191,551.79 × 38,935.59
  4. Step 4: Simplify right side
    127,680.51x = 7,458,181,764.53
  5. Step 5: Solve for x
    x = 7,458,181,764.53/127,680.51
  6. Step 6: Final answer
    x = 58,412.84

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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.