Home / 108,072.35-149,139.26-62,761.46

Finding the Fourth Proportional to 108,072.35, 149,139.26 and 62,761.46

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Solution

The fourth proportional to 108,072.35, 149,139.26 and 62,761.46 is: 86,610.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,072.35 : 149,139.26 = 62,761.46 : x
  2. Step 2: Convert to fraction form
    108,072.35/149,139.26 = 62,761.46/x
  3. Step 3: Cross multiply
    108,072.35x = 149,139.26 × 62,761.46
  4. Step 4: Simplify right side
    108,072.35x = 9,360,196,641.42
  5. Step 5: Solve for x
    x = 9,360,196,641.42/108,072.35
  6. Step 6: Final answer
    x = 86,610.47

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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.