Home / 90,605.41-135,297.94-73,998.39

Finding the Fourth Proportional to 90,605.41, 135,297.94 and 73,998.39

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Solution

The fourth proportional to 90,605.41, 135,297.94 and 73,998.39 is: 110,499.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,605.41 : 135,297.94 = 73,998.39 : x
  2. Step 2: Convert to fraction form
    90,605.41/135,297.94 = 73,998.39/x
  3. Step 3: Cross multiply
    90,605.41x = 135,297.94 × 73,998.39
  4. Step 4: Simplify right side
    90,605.41x = 10,011,828,683.84
  5. Step 5: Solve for x
    x = 10,011,828,683.84/90,605.41
  6. Step 6: Final answer
    x = 110,499.24

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.