Home / 214,871.13-322,223.67-72,678.60

Finding the Fourth Proportional to 214,871.13, 322,223.67 and 72,678.60

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Solution

The fourth proportional to 214,871.13, 322,223.67 and 72,678.60 is: 108,989.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    214,871.13 : 322,223.67 = 72,678.60 : x
  2. Step 2: Convert to fraction form
    214,871.13/322,223.67 = 72,678.60/x
  3. Step 3: Cross multiply
    214,871.13x = 322,223.67 × 72,678.60
  4. Step 4: Simplify right side
    214,871.13x = 23,418,765,222.46
  5. Step 5: Solve for x
    x = 23,418,765,222.46/214,871.13
  6. Step 6: Final answer
    x = 108,989.82

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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.