Home / 127,393.12-191,097.28-38,647.36

Finding the Fourth Proportional to 127,393.12, 191,097.28 and 38,647.36

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Solution

The fourth proportional to 127,393.12, 191,097.28 and 38,647.36 is: 57,973.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,393.12 : 191,097.28 = 38,647.36 : x
  2. Step 2: Convert to fraction form
    127,393.12/191,097.28 = 38,647.36/x
  3. Step 3: Cross multiply
    127,393.12x = 191,097.28 × 38,647.36
  4. Step 4: Simplify right side
    127,393.12x = 7,385,405,375.18
  5. Step 5: Solve for x
    x = 7,385,405,375.18/127,393.12
  6. Step 6: Final answer
    x = 57,973.35

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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.