Home / 214,108.21-320,828.73-80,915.77

Finding the Fourth Proportional to 214,108.21, 320,828.73 and 80,915.77

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Solution

The fourth proportional to 214,108.21, 320,828.73 and 80,915.77 is: 121,247.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    214,108.21 : 320,828.73 = 80,915.77 : x
  2. Step 2: Convert to fraction form
    214,108.21/320,828.73 = 80,915.77/x
  3. Step 3: Cross multiply
    214,108.21x = 320,828.73 × 80,915.77
  4. Step 4: Simplify right side
    214,108.21x = 25,960,103,726.07
  5. Step 5: Solve for x
    x = 25,960,103,726.07/214,108.21
  6. Step 6: Final answer
    x = 121,247.59

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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.