Home / 214,259.12-321,498-87,996.32

Finding the Fourth Proportional to 214,259.12, 321,498 and 87,996.32

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Solution

The fourth proportional to 214,259.12, 321,498 and 87,996.32 is: 132,039.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    214,259.12 : 321,498 = 87,996.32 : x
  2. Step 2: Convert to fraction form
    214,259.12/321,498 = 87,996.32/x
  3. Step 3: Cross multiply
    214,259.12x = 321,498 × 87,996.32
  4. Step 4: Simplify right side
    214,259.12x = 28,290,640,887.36
  5. Step 5: Solve for x
    x = 28,290,640,887.36/214,259.12
  6. Step 6: Final answer
    x = 132,039.38

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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.