Home / 171,515.21-236,699.77-103,531.30

Finding the Fourth Proportional to 171,515.21, 236,699.77 and 103,531.30

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Solution

The fourth proportional to 171,515.21, 236,699.77 and 103,531.30 is: 142,878.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,515.21 : 236,699.77 = 103,531.30 : x
  2. Step 2: Convert to fraction form
    171,515.21/236,699.77 = 103,531.30/x
  3. Step 3: Cross multiply
    171,515.21x = 236,699.77 × 103,531.30
  4. Step 4: Simplify right side
    171,515.21x = 24,505,834,241.34
  5. Step 5: Solve for x
    x = 24,505,834,241.34/171,515.21
  6. Step 6: Final answer
    x = 142,878.49

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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.