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Finding the Fourth Proportional to 134,881.66, 186,136.70 and 74,452.32

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Solution

The fourth proportional to 134,881.66, 186,136.70 and 74,452.32 is: 102,744.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,881.66 : 186,136.70 = 74,452.32 : x
  2. Step 2: Convert to fraction form
    134,881.66/186,136.70 = 74,452.32/x
  3. Step 3: Cross multiply
    134,881.66x = 186,136.70 × 74,452.32
  4. Step 4: Simplify right side
    134,881.66x = 13,858,309,152.14
  5. Step 5: Solve for x
    x = 13,858,309,152.14/134,881.66
  6. Step 6: Final answer
    x = 102,744.21

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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.