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Finding the Fourth Proportional to 127,076.42, 175,365.63 and 70,487.80

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Solution

The fourth proportional to 127,076.42, 175,365.63 and 70,487.80 is: 97,273.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,076.42 : 175,365.63 = 70,487.80 : x
  2. Step 2: Convert to fraction form
    127,076.42/175,365.63 = 70,487.80/x
  3. Step 3: Cross multiply
    127,076.42x = 175,365.63 × 70,487.80
  4. Step 4: Simplify right side
    127,076.42x = 12,361,137,454.31
  5. Step 5: Solve for x
    x = 12,361,137,454.31/127,076.42
  6. Step 6: Final answer
    x = 97,273.26

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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.