Home / 109,835.20-164,752.80-109,057.60

Finding the Fourth Proportional to 109,835.20, 164,752.80 and 109,057.60

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Solution

The fourth proportional to 109,835.20, 164,752.80 and 109,057.60 is: 163,586.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,835.20 : 164,752.80 = 109,057.60 : x
  2. Step 2: Convert to fraction form
    109,835.20/164,752.80 = 109,057.60/x
  3. Step 3: Cross multiply
    109,835.20x = 164,752.80 × 109,057.60
  4. Step 4: Simplify right side
    109,835.20x = 17,967,544,961.28
  5. Step 5: Solve for x
    x = 17,967,544,961.28/109,835.20
  6. Step 6: Final answer
    x = 163,586.40

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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.