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Finding the Fourth Proportional to 163,744.05, 245,616.05 and 45,415.41

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Solution

The fourth proportional to 163,744.05, 245,616.05 and 45,415.41 is: 68,123.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,744.05 : 245,616.05 = 45,415.41 : x
  2. Step 2: Convert to fraction form
    163,744.05/245,616.05 = 45,415.41/x
  3. Step 3: Cross multiply
    163,744.05x = 245,616.05 × 45,415.41
  4. Step 4: Simplify right side
    163,744.05x = 11,154,752,385.25
  5. Step 5: Solve for x
    x = 11,154,752,385.25/163,744.05
  6. Step 6: Final answer
    x = 68,123.10

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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.