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Finding the Fourth Proportional to 163,486.64, 245,229.68 and 45,157.68

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Solution

The fourth proportional to 163,486.64, 245,229.68 and 45,157.68 is: 67,736.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,486.64 : 245,229.68 = 45,157.68 : x
  2. Step 2: Convert to fraction form
    163,486.64/245,229.68 = 45,157.68/x
  3. Step 3: Cross multiply
    163,486.64x = 245,229.68 × 45,157.68
  4. Step 4: Simplify right side
    163,486.64x = 11,074,003,415.94
  5. Step 5: Solve for x
    x = 11,074,003,415.94/163,486.64
  6. Step 6: Final answer
    x = 67,736.44

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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.