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Finding the Fourth Proportional to 163,944.79, 245,915.82 and 45,615.79

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Solution

The fourth proportional to 163,944.79, 245,915.82 and 45,615.79 is: 68,423.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,944.79 : 245,915.82 = 45,615.79 : x
  2. Step 2: Convert to fraction form
    163,944.79/245,915.82 = 45,615.79/x
  3. Step 3: Cross multiply
    163,944.79x = 245,915.82 × 45,615.79
  4. Step 4: Simplify right side
    163,944.79x = 11,217,644,402.80
  5. Step 5: Solve for x
    x = 11,217,644,402.80/163,944.79
  6. Step 6: Final answer
    x = 68,423.31

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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.