Home / 127,934.81-191,807.44-61,311.50

Finding the Fourth Proportional to 127,934.81, 191,807.44 and 61,311.50

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Solution

The fourth proportional to 127,934.81, 191,807.44 and 61,311.50 is: 91,921.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,934.81 : 191,807.44 = 61,311.50 : x
  2. Step 2: Convert to fraction form
    127,934.81/191,807.44 = 61,311.50/x
  3. Step 3: Cross multiply
    127,934.81x = 191,807.44 × 61,311.50
  4. Step 4: Simplify right side
    127,934.81x = 11,760,001,857.56
  5. Step 5: Solve for x
    x = 11,760,001,857.56/127,934.81
  6. Step 6: Final answer
    x = 91,921.83

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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.