Home / 109,802.80-164,704.20-91,103.95

Finding the Fourth Proportional to 109,802.80, 164,704.20 and 91,103.95

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Solution

The fourth proportional to 109,802.80, 164,704.20 and 91,103.95 is: 136,655.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,802.80 : 164,704.20 = 91,103.95 : x
  2. Step 2: Convert to fraction form
    109,802.80/164,704.20 = 91,103.95/x
  3. Step 3: Cross multiply
    109,802.80x = 164,704.20 × 91,103.95
  4. Step 4: Simplify right side
    109,802.80x = 15,005,203,201.59
  5. Step 5: Solve for x
    x = 15,005,203,201.59/109,802.80
  6. Step 6: Final answer
    x = 136,655.93

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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.