Home / 127,892.35-191,831.70-39,145.91

Finding the Fourth Proportional to 127,892.35, 191,831.70 and 39,145.91

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Solution

The fourth proportional to 127,892.35, 191,831.70 and 39,145.91 is: 58,716.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,892.35 : 191,831.70 = 39,145.91 : x
  2. Step 2: Convert to fraction form
    127,892.35/191,831.70 = 39,145.91/x
  3. Step 3: Cross multiply
    127,892.35x = 191,831.70 × 39,145.91
  4. Step 4: Simplify right side
    127,892.35x = 7,509,426,463.35
  5. Step 5: Solve for x
    x = 7,509,426,463.35/127,892.35
  6. Step 6: Final answer
    x = 58,716.78

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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.