Home / 107,831.20-161,746.80-37,717.60

Finding the Fourth Proportional to 107,831.20, 161,746.80 and 37,717.60

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Solution

The fourth proportional to 107,831.20, 161,746.80 and 37,717.60 is: 56,576.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,831.20 : 161,746.80 = 37,717.60 : x
  2. Step 2: Convert to fraction form
    107,831.20/161,746.80 = 37,717.60/x
  3. Step 3: Cross multiply
    107,831.20x = 161,746.80 × 37,717.60
  4. Step 4: Simplify right side
    107,831.20x = 6,100,701,103.68
  5. Step 5: Solve for x
    x = 6,100,701,103.68/107,831.20
  6. Step 6: Final answer
    x = 56,576.40

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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.