Home / 214,397.28-321,369.03-72,107.10

Finding the Fourth Proportional to 214,397.28, 321,369.03 and 72,107.10

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Solution

The fourth proportional to 214,397.28, 321,369.03 and 72,107.10 is: 108,084.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    214,397.28 : 321,369.03 = 72,107.10 : x
  2. Step 2: Convert to fraction form
    214,397.28/321,369.03 = 72,107.10/x
  3. Step 3: Cross multiply
    214,397.28x = 321,369.03 × 72,107.10
  4. Step 4: Simplify right side
    214,397.28x = 23,172,988,783.11
  5. Step 5: Solve for x
    x = 23,172,988,783.11/214,397.28
  6. Step 6: Final answer
    x = 108,084.34

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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.