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Finding the Fourth Proportional to 201,361.68, 301,853.88 and 68,148.72

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Solution

The fourth proportional to 201,361.68, 301,853.88 and 68,148.72 is: 102,159.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,361.68 : 301,853.88 = 68,148.72 : x
  2. Step 2: Convert to fraction form
    201,361.68/301,853.88 = 68,148.72/x
  3. Step 3: Cross multiply
    201,361.68x = 301,853.88 × 68,148.72
  4. Step 4: Simplify right side
    201,361.68x = 20,570,955,549.03
  5. Step 5: Solve for x
    x = 20,570,955,549.03/201,361.68
  6. Step 6: Final answer
    x = 102,159.24

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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.