Home / 214,254.38-321,386.13-72,103.97

Finding the Fourth Proportional to 214,254.38, 321,386.13 and 72,103.97

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Solution

The fourth proportional to 214,254.38, 321,386.13 and 72,103.97 is: 108,157.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    214,254.38 : 321,386.13 = 72,103.97 : x
  2. Step 2: Convert to fraction form
    214,254.38/321,386.13 = 72,103.97/x
  3. Step 3: Cross multiply
    214,254.38x = 321,386.13 × 72,103.97
  4. Step 4: Simplify right side
    214,254.38x = 23,173,216,679.40
  5. Step 5: Solve for x
    x = 23,173,216,679.40/214,254.38
  6. Step 6: Final answer
    x = 108,157.49

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1.5x scale

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.