Home / 135,512.96-187,101.24-103,626.32

Finding the Fourth Proportional to 135,512.96, 187,101.24 and 103,626.32

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Solution

The fourth proportional to 135,512.96, 187,101.24 and 103,626.32 is: 143,075.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,512.96 : 187,101.24 = 103,626.32 : x
  2. Step 2: Convert to fraction form
    135,512.96/187,101.24 = 103,626.32/x
  3. Step 3: Cross multiply
    135,512.96x = 187,101.24 × 103,626.32
  4. Step 4: Simplify right side
    135,512.96x = 19,388,612,968.64
  5. Step 5: Solve for x
    x = 19,388,612,968.64/135,512.96
  6. Step 6: Final answer
    x = 143,075.71

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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.