Home / 108,928.64-163,404.32-30,042.88

Finding the Fourth Proportional to 108,928.64, 163,404.32 and 30,042.88

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Solution

The fourth proportional to 108,928.64, 163,404.32 and 30,042.88 is: 45,067.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,928.64 : 163,404.32 = 30,042.88 : x
  2. Step 2: Convert to fraction form
    108,928.64/163,404.32 = 30,042.88/x
  3. Step 3: Cross multiply
    108,928.64x = 163,404.32 × 30,042.88
  4. Step 4: Simplify right side
    108,928.64x = 4,909,136,377.24
  5. Step 5: Solve for x
    x = 4,909,136,377.24/108,928.64
  6. Step 6: Final answer
    x = 45,067.45

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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.