Home / 108,629.29-149,751.43-76,265.38

Finding the Fourth Proportional to 108,629.29, 149,751.43 and 76,265.38

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Solution

The fourth proportional to 108,629.29, 149,751.43 and 76,265.38 is: 105,136.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,629.29 : 149,751.43 = 76,265.38 : x
  2. Step 2: Convert to fraction form
    108,629.29/149,751.43 = 76,265.38/x
  3. Step 3: Cross multiply
    108,629.29x = 149,751.43 × 76,265.38
  4. Step 4: Simplify right side
    108,629.29x = 11,420,849,714.49
  5. Step 5: Solve for x
    x = 11,420,849,714.49/108,629.29
  6. Step 6: Final answer
    x = 105,136.01

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.