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Finding the Fourth Proportional to 163,858.72, 245,787.94 and 45,530

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Solution

The fourth proportional to 163,858.72, 245,787.94 and 45,530 is: 68,294.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,858.72 : 245,787.94 = 45,530 : x
  2. Step 2: Convert to fraction form
    163,858.72/245,787.94 = 45,530/x
  3. Step 3: Cross multiply
    163,858.72x = 245,787.94 × 45,530
  4. Step 4: Simplify right side
    163,858.72x = 11,190,724,908.20
  5. Step 5: Solve for x
    x = 11,190,724,908.20/163,858.72
  6. Step 6: Final answer
    x = 68,294.96

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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.