Home / 127,828.65-191,531.07-77,757.27

Finding the Fourth Proportional to 127,828.65, 191,531.07 and 77,757.27

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Solution

The fourth proportional to 127,828.65, 191,531.07 and 77,757.27 is: 116,507.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,828.65 : 191,531.07 = 77,757.27 : x
  2. Step 2: Convert to fraction form
    127,828.65/191,531.07 = 77,757.27/x
  3. Step 3: Cross multiply
    127,828.65x = 191,531.07 × 77,757.27
  4. Step 4: Simplify right side
    127,828.65x = 14,892,933,123.38
  5. Step 5: Solve for x
    x = 14,892,933,123.38/127,828.65
  6. Step 6: Final answer
    x = 116,507.00

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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.