Home / 90,144.03-135,187.22-30,965.43

Finding the Fourth Proportional to 90,144.03, 135,187.22 and 30,965.43

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Solution

The fourth proportional to 90,144.03, 135,187.22 and 30,965.43 is: 46,438.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,144.03 : 135,187.22 = 30,965.43 : x
  2. Step 2: Convert to fraction form
    90,144.03/135,187.22 = 30,965.43/x
  3. Step 3: Cross multiply
    90,144.03x = 135,187.22 × 30,965.43
  4. Step 4: Simplify right side
    90,144.03x = 4,186,130,242.98
  5. Step 5: Solve for x
    x = 4,186,130,242.98/90,144.03
  6. Step 6: Final answer
    x = 46,438.24

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.