Home / 137,960.03-190,453.73-90,286.19

Finding the Fourth Proportional to 137,960.03, 190,453.73 and 90,286.19

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Solution

The fourth proportional to 137,960.03, 190,453.73 and 90,286.19 is: 124,640.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,960.03 : 190,453.73 = 90,286.19 : x
  2. Step 2: Convert to fraction form
    137,960.03/190,453.73 = 90,286.19/x
  3. Step 3: Cross multiply
    137,960.03x = 190,453.73 × 90,286.19
  4. Step 4: Simplify right side
    137,960.03x = 17,195,341,652.99
  5. Step 5: Solve for x
    x = 17,195,341,652.99/137,960.03
  6. Step 6: Final answer
    x = 124,640.03

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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.