Home / 158,831.54-219,190.02-87,218

Finding the Fourth Proportional to 158,831.54, 219,190.02 and 87,218

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Solution

The fourth proportional to 158,831.54, 219,190.02 and 87,218 is: 120,362.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,831.54 : 219,190.02 = 87,218 : x
  2. Step 2: Convert to fraction form
    158,831.54/219,190.02 = 87,218/x
  3. Step 3: Cross multiply
    158,831.54x = 219,190.02 × 87,218
  4. Step 4: Simplify right side
    158,831.54x = 19,117,315,164.36
  5. Step 5: Solve for x
    x = 19,117,315,164.36/158,831.54
  6. Step 6: Final answer
    x = 120,362.21

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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.