Home / 214,189.80-320,895.90-130,986.60

Finding the Fourth Proportional to 214,189.80, 320,895.90 and 130,986.60

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Solution

The fourth proportional to 214,189.80, 320,895.90 and 130,986.60 is: 196,242.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    214,189.80 : 320,895.90 = 130,986.60 : x
  2. Step 2: Convert to fraction form
    214,189.80/320,895.90 = 130,986.60/x
  3. Step 3: Cross multiply
    214,189.80x = 320,895.90 × 130,986.60
  4. Step 4: Simplify right side
    214,189.80x = 42,033,062,894.94
  5. Step 5: Solve for x
    x = 42,033,062,894.94/214,189.80
  6. Step 6: Final answer
    x = 196,242.13

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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.