Home / 108,961.40-150,380.74-61,214.80

Finding the Fourth Proportional to 108,961.40, 150,380.74 and 61,214.80

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Solution

The fourth proportional to 108,961.40, 150,380.74 and 61,214.80 is: 84,484.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,961.40 : 150,380.74 = 61,214.80 : x
  2. Step 2: Convert to fraction form
    108,961.40/150,380.74 = 61,214.80/x
  3. Step 3: Cross multiply
    108,961.40x = 150,380.74 × 61,214.80
  4. Step 4: Simplify right side
    108,961.40x = 9,205,526,922.95
  5. Step 5: Solve for x
    x = 9,205,526,922.95/108,961.40
  6. Step 6: Final answer
    x = 84,484.29

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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.