Home / 135,640.36-187,184.10-75,215.26

Finding the Fourth Proportional to 135,640.36, 187,184.10 and 75,215.26

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Solution

The fourth proportional to 135,640.36, 187,184.10 and 75,215.26 is: 103,797.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,640.36 : 187,184.10 = 75,215.26 : x
  2. Step 2: Convert to fraction form
    135,640.36/187,184.10 = 75,215.26/x
  3. Step 3: Cross multiply
    135,640.36x = 187,184.10 × 75,215.26
  4. Step 4: Simplify right side
    135,640.36x = 14,079,100,749.37
  5. Step 5: Solve for x
    x = 14,079,100,749.37/135,640.36
  6. Step 6: Final answer
    x = 103,797.28

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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.