Home / 214,831.83-322,247.88-81,681.33

Finding the Fourth Proportional to 214,831.83, 322,247.88 and 81,681.33

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Solution

The fourth proportional to 214,831.83, 322,247.88 and 81,681.33 is: 122,522.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    214,831.83 : 322,247.88 = 81,681.33 : x
  2. Step 2: Convert to fraction form
    214,831.83/322,247.88 = 81,681.33/x
  3. Step 3: Cross multiply
    214,831.83x = 322,247.88 × 81,681.33
  4. Step 4: Simplify right side
    214,831.83x = 26,321,635,428.08
  5. Step 5: Solve for x
    x = 26,321,635,428.08/214,831.83
  6. Step 6: Final answer
    x = 122,522.05

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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.