Home / 127,812.40-191,711.59-39,065.86

Finding the Fourth Proportional to 127,812.40, 191,711.59 and 39,065.86

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Solution

The fourth proportional to 127,812.40, 191,711.59 and 39,065.86 is: 58,596.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,812.40 : 191,711.59 = 39,065.86 : x
  2. Step 2: Convert to fraction form
    127,812.40/191,711.59 = 39,065.86/x
  3. Step 3: Cross multiply
    127,812.40x = 191,711.59 × 39,065.86
  4. Step 4: Simplify right side
    127,812.40x = 7,489,378,135.32
  5. Step 5: Solve for x
    x = 7,489,378,135.32/127,812.40
  6. Step 6: Final answer
    x = 58,596.65

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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.