Home / 127,812.29-191,711.40-39,065.75

Finding the Fourth Proportional to 127,812.29, 191,711.40 and 39,065.75

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Solution

The fourth proportional to 127,812.29, 191,711.40 and 39,065.75 is: 58,596.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,812.29 : 191,711.40 = 39,065.75 : x
  2. Step 2: Convert to fraction form
    127,812.29/191,711.40 = 39,065.75/x
  3. Step 3: Cross multiply
    127,812.29x = 191,711.40 × 39,065.75
  4. Step 4: Simplify right side
    127,812.29x = 7,489,349,624.55
  5. Step 5: Solve for x
    x = 7,489,349,624.55/127,812.29
  6. Step 6: Final answer
    x = 58,596.47

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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.