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Finding the Fourth Proportional to 163,676.64, 245,194.32 and 84,842.88

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Solution

The fourth proportional to 163,676.64, 245,194.32 and 84,842.88 is: 127,098.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,676.64 : 245,194.32 = 84,842.88 : x
  2. Step 2: Convert to fraction form
    163,676.64/245,194.32 = 84,842.88/x
  3. Step 3: Cross multiply
    163,676.64x = 245,194.32 × 84,842.88
  4. Step 4: Simplify right side
    163,676.64x = 20,802,992,268.44
  5. Step 5: Solve for x
    x = 20,802,992,268.44/163,676.64
  6. Step 6: Final answer
    x = 127,098.11

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1.5x scale

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.