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Finding the Fourth Proportional to 161,682.40, 242,523.60 and 136,021.60

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Solution

The fourth proportional to 161,682.40, 242,523.60 and 136,021.60 is: 204,032.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,682.40 : 242,523.60 = 136,021.60 : x
  2. Step 2: Convert to fraction form
    161,682.40/242,523.60 = 136,021.60/x
  3. Step 3: Cross multiply
    161,682.40x = 242,523.60 × 136,021.60
  4. Step 4: Simplify right side
    161,682.40x = 32,988,448,109.76
  5. Step 5: Solve for x
    x = 32,988,448,109.76/161,682.40
  6. Step 6: Final answer
    x = 204,032.40

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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.