Home / 161,457.64-242,247.97-72,690.73

Finding the Fourth Proportional to 161,457.64, 242,247.97 and 72,690.73

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Solution

The fourth proportional to 161,457.64, 242,247.97 and 72,690.73 is: 109,063.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,457.64 : 242,247.97 = 72,690.73 : x
  2. Step 2: Convert to fraction form
    161,457.64/242,247.97 = 72,690.73/x
  3. Step 3: Cross multiply
    161,457.64x = 242,247.97 × 72,690.73
  4. Step 4: Simplify right side
    161,457.64x = 17,609,181,780.32
  5. Step 5: Solve for x
    x = 17,609,181,780.32/161,457.64
  6. Step 6: Final answer
    x = 109,063.79

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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.