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Finding the Fourth Proportional to 118,458.52, 163,457 and 76,074.48

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Solution

The fourth proportional to 118,458.52, 163,457 and 76,074.48 is: 104,972.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,458.52 : 163,457 = 76,074.48 : x
  2. Step 2: Convert to fraction form
    118,458.52/163,457 = 76,074.48/x
  3. Step 3: Cross multiply
    118,458.52x = 163,457 × 76,074.48
  4. Step 4: Simplify right side
    118,458.52x = 12,434,906,277.36
  5. Step 5: Solve for x
    x = 12,434,906,277.36/118,458.52
  6. Step 6: Final answer
    x = 104,972.66

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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.