Home / 161,531.60-242,297.40-111,765.20

Finding the Fourth Proportional to 161,531.60, 242,297.40 and 111,765.20

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Solution

The fourth proportional to 161,531.60, 242,297.40 and 111,765.20 is: 167,647.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,531.60 : 242,297.40 = 111,765.20 : x
  2. Step 2: Convert to fraction form
    161,531.60/242,297.40 = 111,765.20/x
  3. Step 3: Cross multiply
    161,531.60x = 242,297.40 × 111,765.20
  4. Step 4: Simplify right side
    161,531.60x = 27,080,417,370.48
  5. Step 5: Solve for x
    x = 27,080,417,370.48/161,531.60
  6. Step 6: Final answer
    x = 167,647.80

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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.