Home / 268,749.96-403,184.87-81,776.04

Finding the Fourth Proportional to 268,749.96, 403,184.87 and 81,776.04

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Solution

The fourth proportional to 268,749.96, 403,184.87 and 81,776.04 is: 122,682.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,749.96 : 403,184.87 = 81,776.04 : x
  2. Step 2: Convert to fraction form
    268,749.96/403,184.87 = 81,776.04/x
  3. Step 3: Cross multiply
    268,749.96x = 403,184.87 × 81,776.04
  4. Step 4: Simplify right side
    268,749.96x = 32,970,862,056.51
  5. Step 5: Solve for x
    x = 32,970,862,056.51/268,749.96
  6. Step 6: Final answer
    x = 122,682.30

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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.