Home / 143,314.25-215,016.39-111,831.84

Finding the Fourth Proportional to 143,314.25, 215,016.39 and 111,831.84

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Solution

The fourth proportional to 143,314.25, 215,016.39 and 111,831.84 is: 167,782.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,314.25 : 215,016.39 = 111,831.84 : x
  2. Step 2: Convert to fraction form
    143,314.25/215,016.39 = 111,831.84/x
  3. Step 3: Cross multiply
    143,314.25x = 215,016.39 × 111,831.84
  4. Step 4: Simplify right side
    143,314.25x = 24,045,678,523.86
  5. Step 5: Solve for x
    x = 24,045,678,523.86/143,314.25
  6. Step 6: Final answer
    x = 167,782.89

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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.