Home / 204,518.61-306,123.03-109,511.28

Finding the Fourth Proportional to 204,518.61, 306,123.03 and 109,511.28

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Solution

The fourth proportional to 204,518.61, 306,123.03 and 109,511.28 is: 163,916.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    204,518.61 : 306,123.03 = 109,511.28 : x
  2. Step 2: Convert to fraction form
    204,518.61/306,123.03 = 109,511.28/x
  3. Step 3: Cross multiply
    204,518.61x = 306,123.03 × 109,511.28
  4. Step 4: Simplify right side
    204,518.61x = 33,523,924,852.78
  5. Step 5: Solve for x
    x = 33,523,924,852.78/204,518.61
  6. Step 6: Final answer
    x = 163,916.26

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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.