Home / 108,759.20-163,146.57-45,515.64

Finding the Fourth Proportional to 108,759.20, 163,146.57 and 45,515.64

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Solution

The fourth proportional to 108,759.20, 163,146.57 and 45,515.64 is: 68,276.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,759.20 : 163,146.57 = 45,515.64 : x
  2. Step 2: Convert to fraction form
    108,759.20/163,146.57 = 45,515.64/x
  3. Step 3: Cross multiply
    108,759.20x = 163,146.57 × 45,515.64
  4. Step 4: Simplify right side
    108,759.20x = 7,425,720,547.35
  5. Step 5: Solve for x
    x = 7,425,720,547.35/108,759.20
  6. Step 6: Final answer
    x = 68,276.71

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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.