Home / 109,806.40-164,709.60-54,510.40

Finding the Fourth Proportional to 109,806.40, 164,709.60 and 54,510.40

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Solution

The fourth proportional to 109,806.40, 164,709.60 and 54,510.40 is: 81,765.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,806.40 : 164,709.60 = 54,510.40 : x
  2. Step 2: Convert to fraction form
    109,806.40/164,709.60 = 54,510.40/x
  3. Step 3: Cross multiply
    109,806.40x = 164,709.60 × 54,510.40
  4. Step 4: Simplify right side
    109,806.40x = 8,978,386,179.84
  5. Step 5: Solve for x
    x = 8,978,386,179.84/109,806.40
  6. Step 6: Final answer
    x = 81,765.60

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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.