Home / 149,087.26-205,747.59-85,425.22

Finding the Fourth Proportional to 149,087.26, 205,747.59 and 85,425.22

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Solution

The fourth proportional to 149,087.26, 205,747.59 and 85,425.22 is: 117,890.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,087.26 : 205,747.59 = 85,425.22 : x
  2. Step 2: Convert to fraction form
    149,087.26/205,747.59 = 85,425.22/x
  3. Step 3: Cross multiply
    149,087.26x = 205,747.59 × 85,425.22
  4. Step 4: Simplify right side
    149,087.26x = 17,576,033,140.22
  5. Step 5: Solve for x
    x = 17,576,033,140.22/149,087.26
  6. Step 6: Final answer
    x = 117,890.91

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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.