Home / 214,287.14-320,484.63-129,813.86

Finding the Fourth Proportional to 214,287.14, 320,484.63 and 129,813.86

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Solution

The fourth proportional to 214,287.14, 320,484.63 and 129,813.86 is: 194,147.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    214,287.14 : 320,484.63 = 129,813.86 : x
  2. Step 2: Convert to fraction form
    214,287.14/320,484.63 = 129,813.86/x
  3. Step 3: Cross multiply
    214,287.14x = 320,484.63 × 129,813.86
  4. Step 4: Simplify right side
    214,287.14x = 41,603,346,890.97
  5. Step 5: Solve for x
    x = 41,603,346,890.97/214,287.14
  6. Step 6: Final answer
    x = 194,147.66

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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.