Home / 214,256.90-321,425.96-86,182.98

Finding the Fourth Proportional to 214,256.90, 321,425.96 and 86,182.98

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Solution

The fourth proportional to 214,256.90, 321,425.96 and 86,182.98 is: 129,290.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    214,256.90 : 321,425.96 = 86,182.98 : x
  2. Step 2: Convert to fraction form
    214,256.90/321,425.96 = 86,182.98/x
  3. Step 3: Cross multiply
    214,256.90x = 321,425.96 × 86,182.98
  4. Step 4: Simplify right side
    214,256.90x = 27,701,446,651.25
  5. Step 5: Solve for x
    x = 27,701,446,651.25/214,256.90
  6. Step 6: Final answer
    x = 129,290.81

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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.