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Finding the Fourth Proportional to 111,354.48, 153,582.48 and 68,936.40

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Solution

The fourth proportional to 111,354.48, 153,582.48 and 68,936.40 is: 95,078.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,354.48 : 153,582.48 = 68,936.40 : x
  2. Step 2: Convert to fraction form
    111,354.48/153,582.48 = 68,936.40/x
  3. Step 3: Cross multiply
    111,354.48x = 153,582.48 × 68,936.40
  4. Step 4: Simplify right side
    111,354.48x = 10,587,423,274.27
  5. Step 5: Solve for x
    x = 10,587,423,274.27/111,354.48
  6. Step 6: Final answer
    x = 95,078.56

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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.