Home / 214,287.03-321,368.58-72,116.64

Finding the Fourth Proportional to 214,287.03, 321,368.58 and 72,116.64

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Solution

The fourth proportional to 214,287.03, 321,368.58 and 72,116.64 is: 108,154.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    214,287.03 : 321,368.58 = 72,116.64 : x
  2. Step 2: Convert to fraction form
    214,287.03/321,368.58 = 72,116.64/x
  3. Step 3: Cross multiply
    214,287.03x = 321,368.58 × 72,116.64
  4. Step 4: Simplify right side
    214,287.03x = 23,176,022,191.17
  5. Step 5: Solve for x
    x = 23,176,022,191.17/214,287.03
  6. Step 6: Final answer
    x = 108,154.11

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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.