Home / 133,964.60-200,655.30-81,282.20

Finding the Fourth Proportional to 133,964.60, 200,655.30 and 81,282.20

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Solution

The fourth proportional to 133,964.60, 200,655.30 and 81,282.20 is: 121,746.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,964.60 : 200,655.30 = 81,282.20 : x
  2. Step 2: Convert to fraction form
    133,964.60/200,655.30 = 81,282.20/x
  3. Step 3: Cross multiply
    133,964.60x = 200,655.30 × 81,282.20
  4. Step 4: Simplify right side
    133,964.60x = 16,309,704,225.66
  5. Step 5: Solve for x
    x = 16,309,704,225.66/133,964.60
  6. Step 6: Final answer
    x = 121,746.37

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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.