Home / 122,172.82-183,214.20-42,190.44

Finding the Fourth Proportional to 122,172.82, 183,214.20 and 42,190.44

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Solution

The fourth proportional to 122,172.82, 183,214.20 and 42,190.44 is: 63,270.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,172.82 : 183,214.20 = 42,190.44 : x
  2. Step 2: Convert to fraction form
    122,172.82/183,214.20 = 42,190.44/x
  3. Step 3: Cross multiply
    122,172.82x = 183,214.20 × 42,190.44
  4. Step 4: Simplify right side
    122,172.82x = 7,729,887,712.25
  5. Step 5: Solve for x
    x = 7,729,887,712.25/122,172.82
  6. Step 6: Final answer
    x = 63,270.11

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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.