Home / 149,131.46-205,804.94-84,605.05

Finding the Fourth Proportional to 149,131.46, 205,804.94 and 84,605.05

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Solution

The fourth proportional to 149,131.46, 205,804.94 and 84,605.05 is: 116,756.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,131.46 : 205,804.94 = 84,605.05 : x
  2. Step 2: Convert to fraction form
    149,131.46/205,804.94 = 84,605.05/x
  3. Step 3: Cross multiply
    149,131.46x = 205,804.94 × 84,605.05
  4. Step 4: Simplify right side
    149,131.46x = 17,412,137,073.18
  5. Step 5: Solve for x
    x = 17,412,137,073.18/149,131.46
  6. Step 6: Final answer
    x = 116,756.97

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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.