Home / 127,077.88-190,551.72-67,138.53

Finding the Fourth Proportional to 127,077.88, 190,551.72 and 67,138.53

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Solution

The fourth proportional to 127,077.88, 190,551.72 and 67,138.53 is: 100,673.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,077.88 : 190,551.72 = 67,138.53 : x
  2. Step 2: Convert to fraction form
    127,077.88/190,551.72 = 67,138.53/x
  3. Step 3: Cross multiply
    127,077.88x = 190,551.72 × 67,138.53
  4. Step 4: Simplify right side
    127,077.88x = 12,793,362,369.77
  5. Step 5: Solve for x
    x = 12,793,362,369.77/127,077.88
  6. Step 6: Final answer
    x = 100,673.40

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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.