Home / 127,072.19-190,354.19-76,443.31

Finding the Fourth Proportional to 127,072.19, 190,354.19 and 76,443.31

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Solution

The fourth proportional to 127,072.19, 190,354.19 and 76,443.31 is: 114,512.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,072.19 : 190,354.19 = 76,443.31 : x
  2. Step 2: Convert to fraction form
    127,072.19/190,354.19 = 76,443.31/x
  3. Step 3: Cross multiply
    127,072.19x = 190,354.19 × 76,443.31
  4. Step 4: Simplify right side
    127,072.19x = 14,551,304,211.70
  5. Step 5: Solve for x
    x = 14,551,304,211.70/127,072.19
  6. Step 6: Final answer
    x = 114,512.10

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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.