Home / 109,905.45-164,808.90-43,311.30

Finding the Fourth Proportional to 109,905.45, 164,808.90 and 43,311.30

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Solution

The fourth proportional to 109,905.45, 164,808.90 and 43,311.30 is: 64,947.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,905.45 : 164,808.90 = 43,311.30 : x
  2. Step 2: Convert to fraction form
    109,905.45/164,808.90 = 43,311.30/x
  3. Step 3: Cross multiply
    109,905.45x = 164,808.90 × 43,311.30
  4. Step 4: Simplify right side
    109,905.45x = 7,138,087,710.57
  5. Step 5: Solve for x
    x = 7,138,087,710.57/109,905.45
  6. Step 6: Final answer
    x = 64,947.53

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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.