Home / 127,539.99-191,135.00-80,709.03

Finding the Fourth Proportional to 127,539.99, 191,135.00 and 80,709.03

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Solution

The fourth proportional to 127,539.99, 191,135.00 and 80,709.03 is: 120,952.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,539.99 : 191,135.00 = 80,709.03 : x
  2. Step 2: Convert to fraction form
    127,539.99/191,135.00 = 80,709.03/x
  3. Step 3: Cross multiply
    127,539.99x = 191,135.00 × 80,709.03
  4. Step 4: Simplify right side
    127,539.99x = 15,426,320,045.50
  5. Step 5: Solve for x
    x = 15,426,320,045.50/127,539.99
  6. Step 6: Final answer
    x = 120,952.81

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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.