Home / 251,831.90-347,520.69-137,112.81

Finding the Fourth Proportional to 251,831.90, 347,520.69 and 137,112.81

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Solution

The fourth proportional to 251,831.90, 347,520.69 and 137,112.81 is: 189,211.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,831.90 : 347,520.69 = 137,112.81 : x
  2. Step 2: Convert to fraction form
    251,831.90/347,520.69 = 137,112.81/x
  3. Step 3: Cross multiply
    251,831.90x = 347,520.69 × 137,112.81
  4. Step 4: Simplify right side
    251,831.90x = 47,649,538,339.04
  5. Step 5: Solve for x
    x = 47,649,538,339.04/251,831.90
  6. Step 6: Final answer
    x = 189,211.69

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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.