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Finding the Fourth Proportional to 121,744.70, 168,004.52 and 68,030.10

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Solution

The fourth proportional to 121,744.70, 168,004.52 and 68,030.10 is: 93,879.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,744.70 : 168,004.52 = 68,030.10 : x
  2. Step 2: Convert to fraction form
    121,744.70/168,004.52 = 68,030.10/x
  3. Step 3: Cross multiply
    121,744.70x = 168,004.52 × 68,030.10
  4. Step 4: Simplify right side
    121,744.70x = 11,429,364,296.05
  5. Step 5: Solve for x
    x = 11,429,364,296.05/121,744.70
  6. Step 6: Final answer
    x = 93,879.77

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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.