Home / 214,980.10-322,473.30-81,867.72

Finding the Fourth Proportional to 214,980.10, 322,473.30 and 81,867.72

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Solution

The fourth proportional to 214,980.10, 322,473.30 and 81,867.72 is: 122,802.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    214,980.10 : 322,473.30 = 81,867.72 : x
  2. Step 2: Convert to fraction form
    214,980.10/322,473.30 = 81,867.72/x
  3. Step 3: Cross multiply
    214,980.10x = 322,473.30 × 81,867.72
  4. Step 4: Simplify right side
    214,980.10x = 26,400,153,831.88
  5. Step 5: Solve for x
    x = 26,400,153,831.88/214,980.10
  6. Step 6: Final answer
    x = 122,802.78

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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.