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Finding the Fourth Proportional to 127,906.98, 176,468.67 and 74,172.39

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Solution

The fourth proportional to 127,906.98, 176,468.67 and 74,172.39 is: 102,332.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,906.98 : 176,468.67 = 74,172.39 : x
  2. Step 2: Convert to fraction form
    127,906.98/176,468.67 = 74,172.39/x
  3. Step 3: Cross multiply
    127,906.98x = 176,468.67 × 74,172.39
  4. Step 4: Simplify right side
    127,906.98x = 13,089,103,014.02
  5. Step 5: Solve for x
    x = 13,089,103,014.02/127,906.98
  6. Step 6: Final answer
    x = 102,332.98

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.