Home / 230,331.98-345,527.14-90,072.38

Finding the Fourth Proportional to 230,331.98, 345,527.14 and 90,072.38

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Solution

The fourth proportional to 230,331.98, 345,527.14 and 90,072.38 is: 135,119.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    230,331.98 : 345,527.14 = 90,072.38 : x
  2. Step 2: Convert to fraction form
    230,331.98/345,527.14 = 90,072.38/x
  3. Step 3: Cross multiply
    230,331.98x = 345,527.14 × 90,072.38
  4. Step 4: Simplify right side
    230,331.98x = 31,122,451,854.39
  5. Step 5: Solve for x
    x = 31,122,451,854.39/230,331.98
  6. Step 6: Final answer
    x = 135,119.98

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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.