Home / 212,831.09-319,096.94-98,857.90

Finding the Fourth Proportional to 212,831.09, 319,096.94 and 98,857.90

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Solution

The fourth proportional to 212,831.09, 319,096.94 and 98,857.90 is: 148,217.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,831.09 : 319,096.94 = 98,857.90 : x
  2. Step 2: Convert to fraction form
    212,831.09/319,096.94 = 98,857.90/x
  3. Step 3: Cross multiply
    212,831.09x = 319,096.94 × 98,857.90
  4. Step 4: Simplify right side
    212,831.09x = 31,545,252,050.56
  5. Step 5: Solve for x
    x = 31,545,252,050.56/212,831.09
  6. Step 6: Final answer
    x = 148,217.31

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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.