Home / 135,598.88-187,103.49-90,344.36

Finding the Fourth Proportional to 135,598.88, 187,103.49 and 90,344.36

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Solution

The fourth proportional to 135,598.88, 187,103.49 and 90,344.36 is: 124,659.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,598.88 : 187,103.49 = 90,344.36 : x
  2. Step 2: Convert to fraction form
    135,598.88/187,103.49 = 90,344.36/x
  3. Step 3: Cross multiply
    135,598.88x = 187,103.49 × 90,344.36
  4. Step 4: Simplify right side
    135,598.88x = 16,903,745,057.82
  5. Step 5: Solve for x
    x = 16,903,745,057.82/135,598.88
  6. Step 6: Final answer
    x = 124,659.92

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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.