Home / 135,642.36-187,186.86-75,217.26

Finding the Fourth Proportional to 135,642.36, 187,186.86 and 75,217.26

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Solution

The fourth proportional to 135,642.36, 187,186.86 and 75,217.26 is: 103,800.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,642.36 : 187,186.86 = 75,217.26 : x
  2. Step 2: Convert to fraction form
    135,642.36/187,186.86 = 75,217.26/x
  3. Step 3: Cross multiply
    135,642.36x = 187,186.86 × 75,217.26
  4. Step 4: Simplify right side
    135,642.36x = 14,079,682,717.20
  5. Step 5: Solve for x
    x = 14,079,682,717.20/135,642.36
  6. Step 6: Final answer
    x = 103,800.04

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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.