Home / 122,103.21-183,175.56-42,119.49

Finding the Fourth Proportional to 122,103.21, 183,175.56 and 42,119.49

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Solution

The fourth proportional to 122,103.21, 183,175.56 and 42,119.49 is: 63,186.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,103.21 : 183,175.56 = 42,119.49 : x
  2. Step 2: Convert to fraction form
    122,103.21/183,175.56 = 42,119.49/x
  3. Step 3: Cross multiply
    122,103.21x = 183,175.56 × 42,119.49
  4. Step 4: Simplify right side
    122,103.21x = 7,715,261,167.66
  5. Step 5: Solve for x
    x = 7,715,261,167.66/122,103.21
  6. Step 6: Final answer
    x = 63,186.39

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.