Home / 108,180.63-149,259.69-74,197.53

Finding the Fourth Proportional to 108,180.63, 149,259.69 and 74,197.53

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Solution

The fourth proportional to 108,180.63, 149,259.69 and 74,197.53 is: 102,372.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,180.63 : 149,259.69 = 74,197.53 : x
  2. Step 2: Convert to fraction form
    108,180.63/149,259.69 = 74,197.53/x
  3. Step 3: Cross multiply
    108,180.63x = 149,259.69 × 74,197.53
  4. Step 4: Simplify right side
    108,180.63x = 11,074,700,326.57
  5. Step 5: Solve for x
    x = 11,074,700,326.57/108,180.63
  6. Step 6: Final answer
    x = 102,372.30

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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.