Home / 138,352.41-190,954.13-90,588.33

Finding the Fourth Proportional to 138,352.41, 190,954.13 and 90,588.33

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Solution

The fourth proportional to 138,352.41, 190,954.13 and 90,588.33 is: 125,030.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,352.41 : 190,954.13 = 90,588.33 : x
  2. Step 2: Convert to fraction form
    138,352.41/190,954.13 = 90,588.33/x
  3. Step 3: Cross multiply
    138,352.41x = 190,954.13 × 90,588.33
  4. Step 4: Simplify right side
    138,352.41x = 17,298,215,290.36
  5. Step 5: Solve for x
    x = 17,298,215,290.36/138,352.41
  6. Step 6: Final answer
    x = 125,030.10

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1.5x scale

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.