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Finding the Fourth Proportional to 163,935.80, 245,846.10 and 75,231.80

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Solution

The fourth proportional to 163,935.80, 245,846.10 and 75,231.80 is: 112,821.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,935.80 : 245,846.10 = 75,231.80 : x
  2. Step 2: Convert to fraction form
    163,935.80/245,846.10 = 75,231.80/x
  3. Step 3: Cross multiply
    163,935.80x = 245,846.10 × 75,231.80
  4. Step 4: Simplify right side
    163,935.80x = 18,495,444,625.98
  5. Step 5: Solve for x
    x = 18,495,444,625.98/163,935.80
  6. Step 6: Final answer
    x = 112,821.27

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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.