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Finding the Fourth Proportional to 163,991.73, 245,903.16 and 75,169.16

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Solution

The fourth proportional to 163,991.73, 245,903.16 and 75,169.16 is: 112,715.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,991.73 : 245,903.16 = 75,169.16 : x
  2. Step 2: Convert to fraction form
    163,991.73/245,903.16 = 75,169.16/x
  3. Step 3: Cross multiply
    163,991.73x = 245,903.16 × 75,169.16
  4. Step 4: Simplify right side
    163,991.73x = 18,484,333,978.55
  5. Step 5: Solve for x
    x = 18,484,333,978.55/163,991.73
  6. Step 6: Final answer
    x = 112,715.04

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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.