Home / 127,519.78-191,290.38-38,774.06

Finding the Fourth Proportional to 127,519.78, 191,290.38 and 38,774.06

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Solution

The fourth proportional to 127,519.78, 191,290.38 and 38,774.06 is: 58,164.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,519.78 : 191,290.38 = 38,774.06 : x
  2. Step 2: Convert to fraction form
    127,519.78/191,290.38 = 38,774.06/x
  3. Step 3: Cross multiply
    127,519.78x = 191,290.38 × 38,774.06
  4. Step 4: Simplify right side
    127,519.78x = 7,417,104,671.54
  5. Step 5: Solve for x
    x = 7,417,104,671.54/127,519.78
  6. Step 6: Final answer
    x = 58,164.35

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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.