Home / 135,536.45-187,041.40-75,108.10

Finding the Fourth Proportional to 135,536.45, 187,041.40 and 75,108.10

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Solution

The fourth proportional to 135,536.45, 187,041.40 and 75,108.10 is: 103,649.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,536.45 : 187,041.40 = 75,108.10 : x
  2. Step 2: Convert to fraction form
    135,536.45/187,041.40 = 75,108.10/x
  3. Step 3: Cross multiply
    135,536.45x = 187,041.40 × 75,108.10
  4. Step 4: Simplify right side
    135,536.45x = 14,048,324,175.34
  5. Step 5: Solve for x
    x = 14,048,324,175.34/135,536.45
  6. Step 6: Final answer
    x = 103,649.79

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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.