Home / 208,831.21-313,396.17-88,972.16

Finding the Fourth Proportional to 208,831.21, 313,396.17 and 88,972.16

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Solution

The fourth proportional to 208,831.21, 313,396.17 and 88,972.16 is: 133,521.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,831.21 : 313,396.17 = 88,972.16 : x
  2. Step 2: Convert to fraction form
    208,831.21/313,396.17 = 88,972.16/x
  3. Step 3: Cross multiply
    208,831.21x = 313,396.17 × 88,972.16
  4. Step 4: Simplify right side
    208,831.21x = 27,883,533,914.93
  5. Step 5: Solve for x
    x = 27,883,533,914.93/208,831.21
  6. Step 6: Final answer
    x = 133,521.87

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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.