Home / 162,309.03-243,489.70-49,989.21

Finding the Fourth Proportional to 162,309.03, 243,489.70 and 49,989.21

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Solution

The fourth proportional to 162,309.03, 243,489.70 and 49,989.21 is: 74,991.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    162,309.03 : 243,489.70 = 49,989.21 : x
  2. Step 2: Convert to fraction form
    162,309.03/243,489.70 = 49,989.21/x
  3. Step 3: Cross multiply
    162,309.03x = 243,489.70 × 49,989.21
  4. Step 4: Simplify right side
    162,309.03x = 12,171,857,872.31
  5. Step 5: Solve for x
    x = 12,171,857,872.31/162,309.03
  6. Step 6: Final answer
    x = 74,991.87

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1.5x scale

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.