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Finding the Fourth Proportional to 134,909.59, 186,175.46 and 74,480.33

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Solution

The fourth proportional to 134,909.59, 186,175.46 and 74,480.33 is: 102,782.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,909.59 : 186,175.46 = 74,480.33 : x
  2. Step 2: Convert to fraction form
    134,909.59/186,175.46 = 74,480.33/x
  3. Step 3: Cross multiply
    134,909.59x = 186,175.46 × 74,480.33
  4. Step 4: Simplify right side
    134,909.59x = 13,866,408,954.03
  5. Step 5: Solve for x
    x = 13,866,408,954.03/134,909.59
  6. Step 6: Final answer
    x = 102,782.98

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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.