Home / 127,318.11-190,952.55-120,995.85

Finding the Fourth Proportional to 127,318.11, 190,952.55 and 120,995.85

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Solution

The fourth proportional to 127,318.11, 190,952.55 and 120,995.85 is: 181,470.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,318.11 : 190,952.55 = 120,995.85 : x
  2. Step 2: Convert to fraction form
    127,318.11/190,952.55 = 120,995.85/x
  3. Step 3: Cross multiply
    127,318.11x = 190,952.55 × 120,995.85
  4. Step 4: Simplify right side
    127,318.11x = 23,104,466,096.92
  5. Step 5: Solve for x
    x = 23,104,466,096.92/127,318.11
  6. Step 6: Final answer
    x = 181,470.38

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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.