Home / 231,831.90-347,661.45-82,014.30

Finding the Fourth Proportional to 231,831.90, 347,661.45 and 82,014.30

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Solution

The fourth proportional to 231,831.90, 347,661.45 and 82,014.30 is: 122,990.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    231,831.90 : 347,661.45 = 82,014.30 : x
  2. Step 2: Convert to fraction form
    231,831.90/347,661.45 = 82,014.30/x
  3. Step 3: Cross multiply
    231,831.90x = 347,661.45 × 82,014.30
  4. Step 4: Simplify right side
    231,831.90x = 28,513,210,458.74
  5. Step 5: Solve for x
    x = 28,513,210,458.74/231,831.90
  6. Step 6: Final answer
    x = 122,990.88

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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.