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Finding the Fourth Proportional to 127,293.71, 190,967.90 and 43,049.72

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Solution

The fourth proportional to 127,293.71, 190,967.90 and 43,049.72 is: 64,583.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,293.71 : 190,967.90 = 43,049.72 : x
  2. Step 2: Convert to fraction form
    127,293.71/190,967.90 = 43,049.72/x
  3. Step 3: Cross multiply
    127,293.71x = 190,967.90 × 43,049.72
  4. Step 4: Simplify right side
    127,293.71x = 8,221,113,453.90
  5. Step 5: Solve for x
    x = 8,221,113,453.90/127,293.71
  6. Step 6: Final answer
    x = 64,583.82

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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.