Home / 122,605.92-183,618.26-78,097.74

Finding the Fourth Proportional to 122,605.92, 183,618.26 and 78,097.74

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Solution

The fourth proportional to 122,605.92, 183,618.26 and 78,097.74 is: 116,961.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,605.92 : 183,618.26 = 78,097.74 : x
  2. Step 2: Convert to fraction form
    122,605.92/183,618.26 = 78,097.74/x
  3. Step 3: Cross multiply
    122,605.92x = 183,618.26 × 78,097.74
  4. Step 4: Simplify right side
    122,605.92x = 14,340,171,128.73
  5. Step 5: Solve for x
    x = 14,340,171,128.73/122,605.92
  6. Step 6: Final answer
    x = 116,961.49

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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.