Home / 127,540.64-191,317.76-38,787.36

Finding the Fourth Proportional to 127,540.64, 191,317.76 and 38,787.36

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Solution

The fourth proportional to 127,540.64, 191,317.76 and 38,787.36 is: 58,183.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,540.64 : 191,317.76 = 38,787.36 : x
  2. Step 2: Convert to fraction form
    127,540.64/191,317.76 = 38,787.36/x
  3. Step 3: Cross multiply
    127,540.64x = 191,317.76 × 38,787.36
  4. Step 4: Simplify right side
    127,540.64x = 7,420,710,831.51
  5. Step 5: Solve for x
    x = 7,420,710,831.51/127,540.64
  6. Step 6: Final answer
    x = 58,183.11

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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.