Home / 122,137.52-183,208.62-80,284.76

Finding the Fourth Proportional to 122,137.52, 183,208.62 and 80,284.76

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Solution

The fourth proportional to 122,137.52, 183,208.62 and 80,284.76 is: 120,428.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,137.52 : 183,208.62 = 80,284.76 : x
  2. Step 2: Convert to fraction form
    122,137.52/183,208.62 = 80,284.76/x
  3. Step 3: Cross multiply
    122,137.52x = 183,208.62 × 80,284.76
  4. Step 4: Simplify right side
    122,137.52x = 14,708,860,086.63
  5. Step 5: Solve for x
    x = 14,708,860,086.63/122,137.52
  6. Step 6: Final answer
    x = 120,428.68

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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.