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Finding the Fourth Proportional to 127,948.51, 191,867.03 and 67,963.86

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Solution

The fourth proportional to 127,948.51, 191,867.03 and 67,963.86 is: 101,916.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,948.51 : 191,867.03 = 67,963.86 : x
  2. Step 2: Convert to fraction form
    127,948.51/191,867.03 = 67,963.86/x
  3. Step 3: Cross multiply
    127,948.51x = 191,867.03 × 67,963.86
  4. Step 4: Simplify right side
    127,948.51x = 13,040,023,880.58
  5. Step 5: Solve for x
    x = 13,040,023,880.58/127,948.51
  6. Step 6: Final answer
    x = 101,916.18

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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.