Home / 161,539.60-242,309.40-111,773.20

Finding the Fourth Proportional to 161,539.60, 242,309.40 and 111,773.20

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Solution

The fourth proportional to 161,539.60, 242,309.40 and 111,773.20 is: 167,659.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,539.60 : 242,309.40 = 111,773.20 : x
  2. Step 2: Convert to fraction form
    161,539.60/242,309.40 = 111,773.20/x
  3. Step 3: Cross multiply
    161,539.60x = 242,309.40 × 111,773.20
  4. Step 4: Simplify right side
    161,539.60x = 27,083,697,028.08
  5. Step 5: Solve for x
    x = 27,083,697,028.08/161,539.60
  6. Step 6: Final answer
    x = 167,659.80

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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.