Home / 135,533.58-187,067.58-90,213.36

Finding the Fourth Proportional to 135,533.58, 187,067.58 and 90,213.36

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Solution

The fourth proportional to 135,533.58, 187,067.58 and 90,213.36 is: 124,515.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,533.58 : 187,067.58 = 90,213.36 : x
  2. Step 2: Convert to fraction form
    135,533.58/187,067.58 = 90,213.36/x
  3. Step 3: Cross multiply
    135,533.58x = 187,067.58 × 90,213.36
  4. Step 4: Simplify right side
    135,533.58x = 16,875,994,938.87
  5. Step 5: Solve for x
    x = 16,875,994,938.87/135,533.58
  6. Step 6: Final answer
    x = 124,515.23

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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.