Home / 127,500.62-191,075.96-80,669.66

Finding the Fourth Proportional to 127,500.62, 191,075.96 and 80,669.66

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Solution

The fourth proportional to 127,500.62, 191,075.96 and 80,669.66 is: 120,893.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,500.62 : 191,075.96 = 80,669.66 : x
  2. Step 2: Convert to fraction form
    127,500.62/191,075.96 = 80,669.66/x
  3. Step 3: Cross multiply
    127,500.62x = 191,075.96 × 80,669.66
  4. Step 4: Simplify right side
    127,500.62x = 15,414,032,727.37
  5. Step 5: Solve for x
    x = 15,414,032,727.37/127,500.62
  6. Step 6: Final answer
    x = 120,893.79

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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.