Home / 108,863.30-163,305.28-42,308.57

Finding the Fourth Proportional to 108,863.30, 163,305.28 and 42,308.57

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Solution

The fourth proportional to 108,863.30, 163,305.28 and 42,308.57 is: 63,466.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,863.30 : 163,305.28 = 42,308.57 : x
  2. Step 2: Convert to fraction form
    108,863.30/163,305.28 = 42,308.57/x
  3. Step 3: Cross multiply
    108,863.30x = 163,305.28 × 42,308.57
  4. Step 4: Simplify right side
    108,863.30x = 6,909,212,870.25
  5. Step 5: Solve for x
    x = 6,909,212,870.25/108,863.30
  6. Step 6: Final answer
    x = 63,466.87

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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.