Home / 109,942.30-164,913.45-43,384.60

Finding the Fourth Proportional to 109,942.30, 164,913.45 and 43,384.60

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Solution

The fourth proportional to 109,942.30, 164,913.45 and 43,384.60 is: 65,076.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,942.30 : 164,913.45 = 43,384.60 : x
  2. Step 2: Convert to fraction form
    109,942.30/164,913.45 = 43,384.60/x
  3. Step 3: Cross multiply
    109,942.30x = 164,913.45 × 43,384.60
  4. Step 4: Simplify right side
    109,942.30x = 7,154,704,062.87
  5. Step 5: Solve for x
    x = 7,154,704,062.87/109,942.30
  6. Step 6: Final answer
    x = 65,076.90

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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.