Home / 135,519.36-187,011.30-75,090.88

Finding the Fourth Proportional to 135,519.36, 187,011.30 and 75,090.88

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Solution

The fourth proportional to 135,519.36, 187,011.30 and 75,090.88 is: 103,622.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,519.36 : 187,011.30 = 75,090.88 : x
  2. Step 2: Convert to fraction form
    135,519.36/187,011.30 = 75,090.88/x
  3. Step 3: Cross multiply
    135,519.36x = 187,011.30 × 75,090.88
  4. Step 4: Simplify right side
    135,519.36x = 14,042,843,086.94
  5. Step 5: Solve for x
    x = 14,042,843,086.94/135,519.36
  6. Step 6: Final answer
    x = 103,622.41

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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.