Home / 108,431.33-149,530.25-84,549.29

Finding the Fourth Proportional to 108,431.33, 149,530.25 and 84,549.29

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Solution

The fourth proportional to 108,431.33, 149,530.25 and 84,549.29 is: 116,596.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,431.33 : 149,530.25 = 84,549.29 : x
  2. Step 2: Convert to fraction form
    108,431.33/149,530.25 = 84,549.29/x
  3. Step 3: Cross multiply
    108,431.33x = 149,530.25 × 84,549.29
  4. Step 4: Simplify right side
    108,431.33x = 12,642,675,934.74
  5. Step 5: Solve for x
    x = 12,642,675,934.74/108,431.33
  6. Step 6: Final answer
    x = 116,596.16

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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.