Home / 109,877.40-164,816.10-30,990.60

Finding the Fourth Proportional to 109,877.40, 164,816.10 and 30,990.60

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Solution

The fourth proportional to 109,877.40, 164,816.10 and 30,990.60 is: 46,485.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,877.40 : 164,816.10 = 30,990.60 : x
  2. Step 2: Convert to fraction form
    109,877.40/164,816.10 = 30,990.60/x
  3. Step 3: Cross multiply
    109,877.40x = 164,816.10 × 30,990.60
  4. Step 4: Simplify right side
    109,877.40x = 5,107,749,828.66
  5. Step 5: Solve for x
    x = 5,107,749,828.66/109,877.40
  6. Step 6: Final answer
    x = 46,485.90

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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.