Home / 113,421.20-170,131.80-29,181.20

Finding the Fourth Proportional to 113,421.20, 170,131.80 and 29,181.20

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Solution

The fourth proportional to 113,421.20, 170,131.80 and 29,181.20 is: 43,771.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,421.20 : 170,131.80 = 29,181.20 : x
  2. Step 2: Convert to fraction form
    113,421.20/170,131.80 = 29,181.20/x
  3. Step 3: Cross multiply
    113,421.20x = 170,131.80 × 29,181.20
  4. Step 4: Simplify right side
    113,421.20x = 4,964,650,082.16
  5. Step 5: Solve for x
    x = 4,964,650,082.16/113,421.20
  6. Step 6: Final answer
    x = 43,771.80

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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.