Home / 122,300.24-183,503-66,179.78

Finding the Fourth Proportional to 122,300.24, 183,503 and 66,179.78

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Solution

The fourth proportional to 122,300.24, 183,503 and 66,179.78 is: 99,298.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,300.24 : 183,503 = 66,179.78 : x
  2. Step 2: Convert to fraction form
    122,300.24/183,503 = 66,179.78/x
  3. Step 3: Cross multiply
    122,300.24x = 183,503 × 66,179.78
  4. Step 4: Simplify right side
    122,300.24x = 12,144,188,169.34
  5. Step 5: Solve for x
    x = 12,144,188,169.34/122,300.24
  6. Step 6: Final answer
    x = 99,298.15

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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.