Home / 165,831.56-228,850.90-90,380.06

Finding the Fourth Proportional to 165,831.56, 228,850.90 and 90,380.06

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Solution

The fourth proportional to 165,831.56, 228,850.90 and 90,380.06 is: 124,726.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,831.56 : 228,850.90 = 90,380.06 : x
  2. Step 2: Convert to fraction form
    165,831.56/228,850.90 = 90,380.06/x
  3. Step 3: Cross multiply
    165,831.56x = 228,850.90 × 90,380.06
  4. Step 4: Simplify right side
    165,831.56x = 20,683,558,073.05
  5. Step 5: Solve for x
    x = 20,683,558,073.05/165,831.56
  6. Step 6: Final answer
    x = 124,726.31

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.