Home / 215,829.40-323,744.10-68,066.20

Finding the Fourth Proportional to 215,829.40, 323,744.10 and 68,066.20

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Solution

The fourth proportional to 215,829.40, 323,744.10 and 68,066.20 is: 102,099.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,829.40 : 323,744.10 = 68,066.20 : x
  2. Step 2: Convert to fraction form
    215,829.40/323,744.10 = 68,066.20/x
  3. Step 3: Cross multiply
    215,829.40x = 323,744.10 × 68,066.20
  4. Step 4: Simplify right side
    215,829.40x = 22,036,030,659.42
  5. Step 5: Solve for x
    x = 22,036,030,659.42/215,829.40
  6. Step 6: Final answer
    x = 102,099.30

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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.