Home / 275,741.20-413,611.80-117,985.60

Finding the Fourth Proportional to 275,741.20, 413,611.80 and 117,985.60

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Solution

The fourth proportional to 275,741.20, 413,611.80 and 117,985.60 is: 176,978.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    275,741.20 : 413,611.80 = 117,985.60 : x
  2. Step 2: Convert to fraction form
    275,741.20/413,611.80 = 117,985.60/x
  3. Step 3: Cross multiply
    275,741.20x = 413,611.80 × 117,985.60
  4. Step 4: Simplify right side
    275,741.20x = 48,800,236,390.08
  5. Step 5: Solve for x
    x = 48,800,236,390.08/275,741.20
  6. Step 6: Final answer
    x = 176,978.40

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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.