Home / 214,107.40-321,161.10-125,315.20

Finding the Fourth Proportional to 214,107.40, 321,161.10 and 125,315.20

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Solution

The fourth proportional to 214,107.40, 321,161.10 and 125,315.20 is: 187,972.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    214,107.40 : 321,161.10 = 125,315.20 : x
  2. Step 2: Convert to fraction form
    214,107.40/321,161.10 = 125,315.20/x
  3. Step 3: Cross multiply
    214,107.40x = 321,161.10 × 125,315.20
  4. Step 4: Simplify right side
    214,107.40x = 40,246,367,478.72
  5. Step 5: Solve for x
    x = 40,246,367,478.72/214,107.40
  6. Step 6: Final answer
    x = 187,972.80

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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.