Home / 109,465.40-164,198.10-39,351.80

Finding the Fourth Proportional to 109,465.40, 164,198.10 and 39,351.80

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Solution

The fourth proportional to 109,465.40, 164,198.10 and 39,351.80 is: 59,027.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,465.40 : 164,198.10 = 39,351.80 : x
  2. Step 2: Convert to fraction form
    109,465.40/164,198.10 = 39,351.80/x
  3. Step 3: Cross multiply
    109,465.40x = 164,198.10 × 39,351.80
  4. Step 4: Simplify right side
    109,465.40x = 6,461,490,791.58
  5. Step 5: Solve for x
    x = 6,461,490,791.58/109,465.40
  6. Step 6: Final answer
    x = 59,027.70

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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.