Home / 109,963.20-164,918.40-31,084.80

Finding the Fourth Proportional to 109,963.20, 164,918.40 and 31,084.80

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Solution

The fourth proportional to 109,963.20, 164,918.40 and 31,084.80 is: 46,619.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,963.20 : 164,918.40 = 31,084.80 : x
  2. Step 2: Convert to fraction form
    109,963.20/164,918.40 = 31,084.80/x
  3. Step 3: Cross multiply
    109,963.20x = 164,918.40 × 31,084.80
  4. Step 4: Simplify right side
    109,963.20x = 5,126,455,480.32
  5. Step 5: Solve for x
    x = 5,126,455,480.32/109,963.20
  6. Step 6: Final answer
    x = 46,619.74

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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.