Home / 137,866.26-190,206.99-90,147.54

Finding the Fourth Proportional to 137,866.26, 190,206.99 and 90,147.54

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Solution

The fourth proportional to 137,866.26, 190,206.99 and 90,147.54 is: 124,371.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,866.26 : 190,206.99 = 90,147.54 : x
  2. Step 2: Convert to fraction form
    137,866.26/190,206.99 = 90,147.54/x
  3. Step 3: Cross multiply
    137,866.26x = 190,206.99 × 90,147.54
  4. Step 4: Simplify right side
    137,866.26x = 17,146,692,239.30
  5. Step 5: Solve for x
    x = 17,146,692,239.30/137,866.26
  6. Step 6: Final answer
    x = 124,371.93

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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.