Home / 137,967.09-190,463.48-90,293.26

Finding the Fourth Proportional to 137,967.09, 190,463.48 and 90,293.26

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Solution

The fourth proportional to 137,967.09, 190,463.48 and 90,293.26 is: 124,649.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,967.09 : 190,463.48 = 90,293.26 : x
  2. Step 2: Convert to fraction form
    137,967.09/190,463.48 = 90,293.26/x
  3. Step 3: Cross multiply
    137,967.09x = 190,463.48 × 90,293.26
  4. Step 4: Simplify right side
    137,967.09x = 17,197,567,116.36
  5. Step 5: Solve for x
    x = 17,197,567,116.36/137,967.09
  6. Step 6: Final answer
    x = 124,649.78

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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.