Home / 756,761.12-1,135,108.87-188,130.32

Finding the Fourth Proportional to 756,761.12, 1,135,108.87 and 188,130.32

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Solution

The fourth proportional to 756,761.12, 1,135,108.87 and 188,130.32 is: 282,187.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    756,761.12 : 1,135,108.87 = 188,130.32 : x
  2. Step 2: Convert to fraction form
    756,761.12/1,135,108.87 = 188,130.32/x
  3. Step 3: Cross multiply
    756,761.12x = 1,135,108.87 × 188,130.32
  4. Step 4: Simplify right side
    756,761.12x = 213,548,394,947.94
  5. Step 5: Solve for x
    x = 213,548,394,947.94/756,761.12
  6. Step 6: Final answer
    x = 282,187.32

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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.