Home / 149,110.36-205,772.22-82,041.88

Finding the Fourth Proportional to 149,110.36, 205,772.22 and 82,041.88

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Solution

The fourth proportional to 149,110.36, 205,772.22 and 82,041.88 is: 113,217.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,110.36 : 205,772.22 = 82,041.88 : x
  2. Step 2: Convert to fraction form
    149,110.36/205,772.22 = 82,041.88/x
  3. Step 3: Cross multiply
    149,110.36x = 205,772.22 × 82,041.88
  4. Step 4: Simplify right side
    149,110.36x = 16,881,939,780.57
  5. Step 5: Solve for x
    x = 16,881,939,780.57/149,110.36
  6. Step 6: Final answer
    x = 113,217.75

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.