Home / 109,955.20-164,906.40-31,076.80

Finding the Fourth Proportional to 109,955.20, 164,906.40 and 31,076.80

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Solution

The fourth proportional to 109,955.20, 164,906.40 and 31,076.80 is: 46,607.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,955.20 : 164,906.40 = 31,076.80 : x
  2. Step 2: Convert to fraction form
    109,955.20/164,906.40 = 31,076.80/x
  3. Step 3: Cross multiply
    109,955.20x = 164,906.40 × 31,076.80
  4. Step 4: Simplify right side
    109,955.20x = 5,124,763,211.52
  5. Step 5: Solve for x
    x = 5,124,763,211.52/109,955.20
  6. Step 6: Final answer
    x = 46,607.74

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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.