Home / 105,221.33-157,831.99-38,632.64

Finding the Fourth Proportional to 105,221.33, 157,831.99 and 38,632.64

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Solution

The fourth proportional to 105,221.33, 157,831.99 and 38,632.64 is: 57,948.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,221.33 : 157,831.99 = 38,632.64 : x
  2. Step 2: Convert to fraction form
    105,221.33/157,831.99 = 38,632.64/x
  3. Step 3: Cross multiply
    105,221.33x = 157,831.99 × 38,632.64
  4. Step 4: Simplify right side
    105,221.33x = 6,097,466,450.15
  5. Step 5: Solve for x
    x = 6,097,466,450.15/105,221.33
  6. Step 6: Final answer
    x = 57,948.96

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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.