Home / 108,072.91-149,172.29-62,771.26

Finding the Fourth Proportional to 108,072.91, 149,172.29 and 62,771.26

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Solution

The fourth proportional to 108,072.91, 149,172.29 and 62,771.26 is: 86,642.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,072.91 : 149,172.29 = 62,771.26 : x
  2. Step 2: Convert to fraction form
    108,072.91/149,172.29 = 62,771.26/x
  3. Step 3: Cross multiply
    108,072.91x = 149,172.29 × 62,771.26
  4. Step 4: Simplify right side
    108,072.91x = 9,363,732,600.39
  5. Step 5: Solve for x
    x = 9,363,732,600.39/108,072.91
  6. Step 6: Final answer
    x = 86,642.74

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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.