Home / 108,072.77-149,139.85-62,761.89

Finding the Fourth Proportional to 108,072.77, 149,139.85 and 62,761.89

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Solution

The fourth proportional to 108,072.77, 149,139.85 and 62,761.89 is: 86,611.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,072.77 : 149,139.85 = 62,761.89 : x
  2. Step 2: Convert to fraction form
    108,072.77/149,139.85 = 62,761.89/x
  3. Step 3: Cross multiply
    108,072.77x = 149,139.85 × 62,761.89
  4. Step 4: Simplify right side
    108,072.77x = 9,360,298,860.32
  5. Step 5: Solve for x
    x = 9,360,298,860.32/108,072.77
  6. Step 6: Final answer
    x = 86,611.08

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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.