Home / 214,451.04-321,832.08-121,139.04

Finding the Fourth Proportional to 214,451.04, 321,832.08 and 121,139.04

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Solution

The fourth proportional to 214,451.04, 321,832.08 and 121,139.04 is: 181,796.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    214,451.04 : 321,832.08 = 121,139.04 : x
  2. Step 2: Convert to fraction form
    214,451.04/321,832.08 = 121,139.04/x
  3. Step 3: Cross multiply
    214,451.04x = 321,832.08 × 121,139.04
  4. Step 4: Simplify right side
    214,451.04x = 38,986,429,212.40
  5. Step 5: Solve for x
    x = 38,986,429,212.40/214,451.04
  6. Step 6: Final answer
    x = 181,796.41

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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.