Home / 161,188.20-241,782.30-111,421.80

Finding the Fourth Proportional to 161,188.20, 241,782.30 and 111,421.80

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Solution

The fourth proportional to 161,188.20, 241,782.30 and 111,421.80 is: 167,132.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,188.20 : 241,782.30 = 111,421.80 : x
  2. Step 2: Convert to fraction form
    161,188.20/241,782.30 = 111,421.80/x
  3. Step 3: Cross multiply
    161,188.20x = 241,782.30 × 111,421.80
  4. Step 4: Simplify right side
    161,188.20x = 26,939,819,074.14
  5. Step 5: Solve for x
    x = 26,939,819,074.14/161,188.20
  6. Step 6: Final answer
    x = 167,132.70

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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.