Home / 158,831.25-219,187.13-91,763.25

Finding the Fourth Proportional to 158,831.25, 219,187.13 and 91,763.25

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Solution

The fourth proportional to 158,831.25, 219,187.13 and 91,763.25 is: 126,633.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,831.25 : 219,187.13 = 91,763.25 : x
  2. Step 2: Convert to fraction form
    158,831.25/219,187.13 = 91,763.25/x
  3. Step 3: Cross multiply
    158,831.25x = 219,187.13 × 91,763.25
  4. Step 4: Simplify right side
    158,831.25x = 20,113,322,948.16
  5. Step 5: Solve for x
    x = 20,113,322,948.16/158,831.25
  6. Step 6: Final answer
    x = 126,633.29

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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.