Home / 149,033.36-205,648.80-85,367.36

Finding the Fourth Proportional to 149,033.36, 205,648.80 and 85,367.36

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Solution

The fourth proportional to 149,033.36, 205,648.80 and 85,367.36 is: 117,797.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,033.36 : 205,648.80 = 85,367.36 : x
  2. Step 2: Convert to fraction form
    149,033.36/205,648.80 = 85,367.36/x
  3. Step 3: Cross multiply
    149,033.36x = 205,648.80 × 85,367.36
  4. Step 4: Simplify right side
    149,033.36x = 17,555,695,143.17
  5. Step 5: Solve for x
    x = 17,555,695,143.17/149,033.36
  6. Step 6: Final answer
    x = 117,797.08

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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.