Home / 158,831.94-219,191.61-87,212.24

Finding the Fourth Proportional to 158,831.94, 219,191.61 and 87,212.24

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Solution

The fourth proportional to 158,831.94, 219,191.61 and 87,212.24 is: 120,354.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,831.94 : 219,191.61 = 87,212.24 : x
  2. Step 2: Convert to fraction form
    158,831.94/219,191.61 = 87,212.24/x
  3. Step 3: Cross multiply
    158,831.94x = 219,191.61 × 87,212.24
  4. Step 4: Simplify right side
    158,831.94x = 19,116,190,201.35
  5. Step 5: Solve for x
    x = 19,116,190,201.35/158,831.94
  6. Step 6: Final answer
    x = 120,354.82

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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.