Home / 214,871.86-322,307.88-81,721.36

Finding the Fourth Proportional to 214,871.86, 322,307.88 and 81,721.36

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Solution

The fourth proportional to 214,871.86, 322,307.88 and 81,721.36 is: 122,582.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    214,871.86 : 322,307.88 = 81,721.36 : x
  2. Step 2: Convert to fraction form
    214,871.86/322,307.88 = 81,721.36/x
  3. Step 3: Cross multiply
    214,871.86x = 322,307.88 × 81,721.36
  4. Step 4: Simplify right side
    214,871.86x = 26,339,438,292.32
  5. Step 5: Solve for x
    x = 26,339,438,292.32/214,871.86
  6. Step 6: Final answer
    x = 122,582.07

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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.