Home / 135,532.10-203,492.55-105,983.30

Finding the Fourth Proportional to 135,532.10, 203,492.55 and 105,983.30

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Solution

The fourth proportional to 135,532.10, 203,492.55 and 105,983.30 is: 159,126.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,532.10 : 203,492.55 = 105,983.30 : x
  2. Step 2: Convert to fraction form
    135,532.10/203,492.55 = 105,983.30/x
  3. Step 3: Cross multiply
    135,532.10x = 203,492.55 × 105,983.30
  4. Step 4: Simplify right side
    135,532.10x = 21,566,811,974.42
  5. Step 5: Solve for x
    x = 21,566,811,974.42/135,532.10
  6. Step 6: Final answer
    x = 159,126.97

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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.